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Finding the Fourth Proportional to 147,053,187.20, 220,579,780.80 and 147,053,187.20

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Solution

The fourth proportional to 147,053,187.20, 220,579,780.80 and 147,053,187.20 is: 220,579,780.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,053,187.20 : 220,579,780.80 = 147,053,187.20 : x
  2. Step 2: Convert to fraction form
    147,053,187.20/220,579,780.80 = 147,053,187.20/x
  3. Step 3: Cross multiply
    147,053,187.20x = 220,579,780.80 × 147,053,187.20
  4. Step 4: Simplify right side
    147,053,187.20x = 32,436,959,798,517,364
  5. Step 5: Solve for x
    x = 32,436,959,798,517,364/147,053,187.20
  6. Step 6: Final answer
    x = 220,579,780.80

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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.