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Finding the Fourth Proportional to 172,478.70, 238,020.23 and 97,027.20

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Solution

The fourth proportional to 172,478.70, 238,020.23 and 97,027.20 is: 133,897.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,478.70 : 238,020.23 = 97,027.20 : x
  2. Step 2: Convert to fraction form
    172,478.70/238,020.23 = 97,027.20/x
  3. Step 3: Cross multiply
    172,478.70x = 238,020.23 × 97,027.20
  4. Step 4: Simplify right side
    172,478.70x = 23,094,436,702.82
  5. Step 5: Solve for x
    x = 23,094,436,702.82/172,478.70
  6. Step 6: Final answer
    x = 133,897.33

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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.