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Finding the Fourth Proportional to 93,766.32, 129,406.32 and 56,039.76

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Solution

The fourth proportional to 93,766.32, 129,406.32 and 56,039.76 is: 77,340.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,766.32 : 129,406.32 = 56,039.76 : x
  2. Step 2: Convert to fraction form
    93,766.32/129,406.32 = 56,039.76/x
  3. Step 3: Cross multiply
    93,766.32x = 129,406.32 × 56,039.76
  4. Step 4: Simplify right side
    93,766.32x = 7,251,899,115.28
  5. Step 5: Solve for x
    x = 7,251,899,115.28/93,766.32
  6. Step 6: Final answer
    x = 77,340.13

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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.