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Finding the Fourth Proportional to 125,323.13, 187,545.44 and 89,823.60

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Solution

The fourth proportional to 125,323.13, 187,545.44 and 89,823.60 is: 134,420.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,323.13 : 187,545.44 = 89,823.60 : x
  2. Step 2: Convert to fraction form
    125,323.13/187,545.44 = 89,823.60/x
  3. Step 3: Cross multiply
    125,323.13x = 187,545.44 × 89,823.60
  4. Step 4: Simplify right side
    125,323.13x = 16,846,006,808.94
  5. Step 5: Solve for x
    x = 16,846,006,808.94/125,323.13
  6. Step 6: Final answer
    x = 134,420.57

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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.