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Finding the Fourth Proportional to 124,937.60, 187,492.80 and 89,902.40

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Solution

The fourth proportional to 124,937.60, 187,492.80 and 89,902.40 is: 134,915.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,937.60 : 187,492.80 = 89,902.40 : x
  2. Step 2: Convert to fraction form
    124,937.60/187,492.80 = 89,902.40/x
  3. Step 3: Cross multiply
    124,937.60x = 187,492.80 × 89,902.40
  4. Step 4: Simplify right side
    124,937.60x = 16,856,052,702.72
  5. Step 5: Solve for x
    x = 16,856,052,702.72/124,937.60
  6. Step 6: Final answer
    x = 134,915.77

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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.