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Finding the Fourth Proportional to 125,487.67, 173,173.12 and 74,510.58

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Solution

The fourth proportional to 125,487.67, 173,173.12 and 74,510.58 is: 102,824.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,487.67 : 173,173.12 = 74,510.58 : x
  2. Step 2: Convert to fraction form
    125,487.67/173,173.12 = 74,510.58/x
  3. Step 3: Cross multiply
    125,487.67x = 173,173.12 × 74,510.58
  4. Step 4: Simplify right side
    125,487.67x = 12,903,229,611.61
  5. Step 5: Solve for x
    x = 12,903,229,611.61/125,487.67
  6. Step 6: Final answer
    x = 102,824.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.