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Finding the Fourth Proportional to 172,681.92, 238,304.16 and 97,233.12

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Solution

The fourth proportional to 172,681.92, 238,304.16 and 97,233.12 is: 134,183.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,681.92 : 238,304.16 = 97,233.12 : x
  2. Step 2: Convert to fraction form
    172,681.92/238,304.16 = 97,233.12/x
  3. Step 3: Cross multiply
    172,681.92x = 238,304.16 × 97,233.12
  4. Step 4: Simplify right side
    172,681.92x = 23,171,056,985.78
  5. Step 5: Solve for x
    x = 23,171,056,985.78/172,681.92
  6. Step 6: Final answer
    x = 134,183.46

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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.