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Finding the Fourth Proportional to 92,820.64, 139,230.96 and 88,854.88

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Solution

The fourth proportional to 92,820.64, 139,230.96 and 88,854.88 is: 133,282.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,820.64 : 139,230.96 = 88,854.88 : x
  2. Step 2: Convert to fraction form
    92,820.64/139,230.96 = 88,854.88/x
  3. Step 3: Cross multiply
    92,820.64x = 139,230.96 × 88,854.88
  4. Step 4: Simplify right side
    92,820.64x = 12,371,350,243.08
  5. Step 5: Solve for x
    x = 12,371,350,243.08/92,820.64
  6. Step 6: Final answer
    x = 133,282.32

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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.