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Finding the Fourth Proportional to 92,567.20, 138,850.80 and 88,938.40

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Solution

The fourth proportional to 92,567.20, 138,850.80 and 88,938.40 is: 133,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,567.20 : 138,850.80 = 88,938.40 : x
  2. Step 2: Convert to fraction form
    92,567.20/138,850.80 = 88,938.40/x
  3. Step 3: Cross multiply
    92,567.20x = 138,850.80 × 88,938.40
  4. Step 4: Simplify right side
    92,567.20x = 12,349,167,990.72
  5. Step 5: Solve for x
    x = 12,349,167,990.72/92,567.20
  6. Step 6: Final answer
    x = 133,407.60

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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.