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Finding the Fourth Proportional to 172,609.92, 238,196.16 and 97,148.16

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Solution

The fourth proportional to 172,609.92, 238,196.16 and 97,148.16 is: 134,061.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,609.92 : 238,196.16 = 97,148.16 : x
  2. Step 2: Convert to fraction form
    172,609.92/238,196.16 = 97,148.16/x
  3. Step 3: Cross multiply
    172,609.92x = 238,196.16 × 97,148.16
  4. Step 4: Simplify right side
    172,609.92x = 23,140,318,663.07
  5. Step 5: Solve for x
    x = 23,140,318,663.07/172,609.92
  6. Step 6: Final answer
    x = 134,061.35

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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.