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Finding the Fourth Proportional to 172,497.86, 238,017.38 and 158,545.74

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Solution

The fourth proportional to 172,497.86, 238,017.38 and 158,545.74 is: 218,765.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,497.86 : 238,017.38 = 158,545.74 : x
  2. Step 2: Convert to fraction form
    172,497.86/238,017.38 = 158,545.74/x
  3. Step 3: Cross multiply
    172,497.86x = 238,017.38 × 158,545.74
  4. Step 4: Simplify right side
    172,497.86x = 37,736,641,644.96
  5. Step 5: Solve for x
    x = 37,736,641,644.96/172,497.86
  6. Step 6: Final answer
    x = 218,765.85

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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.