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Finding the Fourth Proportional to 172,962.16, 238,698.96 and 97,515.52

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Solution

The fourth proportional to 172,962.16, 238,698.96 and 97,515.52 is: 134,577.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,962.16 : 238,698.96 = 97,515.52 : x
  2. Step 2: Convert to fraction form
    172,962.16/238,698.96 = 97,515.52/x
  3. Step 3: Cross multiply
    172,962.16x = 238,698.96 × 97,515.52
  4. Step 4: Simplify right side
    172,962.16x = 23,276,853,207.86
  5. Step 5: Solve for x
    x = 23,276,853,207.86/172,962.16
  6. Step 6: Final answer
    x = 134,577.72

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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.