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Finding the Fourth Proportional to 128,818,577.70, 193,227,866.55 and 128,818,577.70

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Solution

The fourth proportional to 128,818,577.70, 193,227,866.55 and 128,818,577.70 is: 193,227,866.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,818,577.70 : 193,227,866.55 = 128,818,577.70 : x
  2. Step 2: Convert to fraction form
    128,818,577.70/193,227,866.55 = 128,818,577.70/x
  3. Step 3: Cross multiply
    128,818,577.70x = 193,227,866.55 × 128,818,577.70
  4. Step 4: Simplify right side
    128,818,577.70x = 24,891,338,940,976,408
  5. Step 5: Solve for x
    x = 24,891,338,940,976,408/128,818,577.70
  6. Step 6: Final answer
    x = 193,227,866.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.