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Finding the Fourth Proportional to 94,132.80, 129,916.84 and 56,410.56

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Solution

The fourth proportional to 94,132.80, 129,916.84 and 56,410.56 is: 77,854.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,132.80 : 129,916.84 = 56,410.56 : x
  2. Step 2: Convert to fraction form
    94,132.80/129,916.84 = 56,410.56/x
  3. Step 3: Cross multiply
    94,132.80x = 129,916.84 × 56,410.56
  4. Step 4: Simplify right side
    94,132.80x = 7,328,681,697.83
  5. Step 5: Solve for x
    x = 7,328,681,697.83/94,132.80
  6. Step 6: Final answer
    x = 77,854.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.