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Finding the Fourth Proportional to 172,663.40, 238,312.23 and 116,041.97

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Solution

The fourth proportional to 172,663.40, 238,312.23 and 116,041.97 is: 160,162.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,663.40 : 238,312.23 = 116,041.97 : x
  2. Step 2: Convert to fraction form
    172,663.40/238,312.23 = 116,041.97/x
  3. Step 3: Cross multiply
    172,663.40x = 238,312.23 × 116,041.97
  4. Step 4: Simplify right side
    172,663.40x = 27,654,220,644.29
  5. Step 5: Solve for x
    x = 27,654,220,644.29/172,663.40
  6. Step 6: Final answer
    x = 160,162.61

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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.