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Finding the Fourth Proportional to 93,166.71, 128,568.04 and 54,411.20

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Solution

The fourth proportional to 93,166.71, 128,568.04 and 54,411.20 is: 75,086.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,166.71 : 128,568.04 = 54,411.20 : x
  2. Step 2: Convert to fraction form
    93,166.71/128,568.04 = 54,411.20/x
  3. Step 3: Cross multiply
    93,166.71x = 128,568.04 × 54,411.20
  4. Step 4: Simplify right side
    93,166.71x = 6,995,541,338.05
  5. Step 5: Solve for x
    x = 6,995,541,338.05/93,166.71
  6. Step 6: Final answer
    x = 75,086.28

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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.