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Finding the Fourth Proportional to 93,632, 129,212.16 and 53,911.04

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Solution

The fourth proportional to 93,632, 129,212.16 and 53,911.04 is: 74,397.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,632 : 129,212.16 = 53,911.04 : x
  2. Step 2: Convert to fraction form
    93,632/129,212.16 = 53,911.04/x
  3. Step 3: Cross multiply
    93,632x = 129,212.16 × 53,911.04
  4. Step 4: Simplify right side
    93,632x = 6,965,961,926.25
  5. Step 5: Solve for x
    x = 6,965,961,926.25/93,632
  6. Step 6: Final answer
    x = 74,397.24

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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.