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Finding the Fourth Proportional to 83,166.16, 124,745.16 and 30,572.32

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Solution

The fourth proportional to 83,166.16, 124,745.16 and 30,572.32 is: 45,856.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,166.16 : 124,745.16 = 30,572.32 : x
  2. Step 2: Convert to fraction form
    83,166.16/124,745.16 = 30,572.32/x
  3. Step 3: Cross multiply
    83,166.16x = 124,745.16 × 30,572.32
  4. Step 4: Simplify right side
    83,166.16x = 3,813,748,949.97
  5. Step 5: Solve for x
    x = 3,813,748,949.97/83,166.16
  6. Step 6: Final answer
    x = 45,856.98

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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.