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Finding the Fourth Proportional to 171,915.16, 257,872.38 and 97,001.32

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Solution

The fourth proportional to 171,915.16, 257,872.38 and 97,001.32 is: 145,501.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,915.16 : 257,872.38 = 97,001.32 : x
  2. Step 2: Convert to fraction form
    171,915.16/257,872.38 = 97,001.32/x
  3. Step 3: Cross multiply
    171,915.16x = 257,872.38 × 97,001.32
  4. Step 4: Simplify right side
    171,915.16x = 25,013,961,251.54
  5. Step 5: Solve for x
    x = 25,013,961,251.54/171,915.16
  6. Step 6: Final answer
    x = 145,501.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.