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Finding the Fourth Proportional to 124,813.80, 187,220.70 and 36,070.20

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Solution

The fourth proportional to 124,813.80, 187,220.70 and 36,070.20 is: 54,105.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,813.80 : 187,220.70 = 36,070.20 : x
  2. Step 2: Convert to fraction form
    124,813.80/187,220.70 = 36,070.20/x
  3. Step 3: Cross multiply
    124,813.80x = 187,220.70 × 36,070.20
  4. Step 4: Simplify right side
    124,813.80x = 6,753,088,093.14
  5. Step 5: Solve for x
    x = 6,753,088,093.14/124,813.80
  6. Step 6: Final answer
    x = 54,105.30

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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.