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Finding the Fourth Proportional to 70,382.61, 97,128.04 and 38,552.04

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Solution

The fourth proportional to 70,382.61, 97,128.04 and 38,552.04 is: 53,201.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,382.61 : 97,128.04 = 38,552.04 : x
  2. Step 2: Convert to fraction form
    70,382.61/97,128.04 = 38,552.04/x
  3. Step 3: Cross multiply
    70,382.61x = 97,128.04 × 38,552.04
  4. Step 4: Simplify right side
    70,382.61x = 3,744,484,083.20
  5. Step 5: Solve for x
    x = 3,744,484,083.20/70,382.61
  6. Step 6: Final answer
    x = 53,201.84

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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.