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Finding the Fourth Proportional to 92,278.30, 129,277.10 and 92,278.30

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Solution

The fourth proportional to 92,278.30, 129,277.10 and 92,278.30 is: 129,277.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,278.30 : 129,277.10 = 92,278.30 : x
  2. Step 2: Convert to fraction form
    92,278.30/129,277.10 = 92,278.30/x
  3. Step 3: Cross multiply
    92,278.30x = 129,277.10 × 92,278.30
  4. Step 4: Simplify right side
    92,278.30x = 11,929,471,016.93
  5. Step 5: Solve for x
    x = 11,929,471,016.93/92,278.30
  6. Step 6: Final answer
    x = 129,277.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.