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Finding the Fourth Proportional to 131,443.92, 181,203.80 and 93,652.56

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Solution

The fourth proportional to 131,443.92, 181,203.80 and 93,652.56 is: 129,106.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,443.92 : 181,203.80 = 93,652.56 : x
  2. Step 2: Convert to fraction form
    131,443.92/181,203.80 = 93,652.56/x
  3. Step 3: Cross multiply
    131,443.92x = 181,203.80 × 93,652.56
  4. Step 4: Simplify right side
    131,443.92x = 16,970,199,751.73
  5. Step 5: Solve for x
    x = 16,970,199,751.73/131,443.92
  6. Step 6: Final answer
    x = 129,106.01

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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.