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Finding the Fourth Proportional to 172,876.50, 238,635.18 and 116,320.68

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Solution

The fourth proportional to 172,876.50, 238,635.18 and 116,320.68 is: 160,566.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,876.50 : 238,635.18 = 116,320.68 : x
  2. Step 2: Convert to fraction form
    172,876.50/238,635.18 = 116,320.68/x
  3. Step 3: Cross multiply
    172,876.50x = 238,635.18 × 116,320.68
  4. Step 4: Simplify right side
    172,876.50x = 27,758,206,409.52
  5. Step 5: Solve for x
    x = 27,758,206,409.52/172,876.50
  6. Step 6: Final answer
    x = 160,566.68

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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.