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Finding the Fourth Proportional to 86,184.80, 129,277.20 and 62,856.80

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Solution

The fourth proportional to 86,184.80, 129,277.20 and 62,856.80 is: 94,285.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,184.80 : 129,277.20 = 62,856.80 : x
  2. Step 2: Convert to fraction form
    86,184.80/129,277.20 = 62,856.80/x
  3. Step 3: Cross multiply
    86,184.80x = 129,277.20 × 62,856.80
  4. Step 4: Simplify right side
    86,184.80x = 8,125,951,104.96
  5. Step 5: Solve for x
    x = 8,125,951,104.96/86,184.80
  6. Step 6: Final answer
    x = 94,285.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.