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Finding the Fourth Proportional to 124,600.80, 186,944.40 and 54,530.40

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Solution

The fourth proportional to 124,600.80, 186,944.40 and 54,530.40 is: 81,814.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,600.80 : 186,944.40 = 54,530.40 : x
  2. Step 2: Convert to fraction form
    124,600.80/186,944.40 = 54,530.40/x
  3. Step 3: Cross multiply
    124,600.80x = 186,944.40 × 54,530.40
  4. Step 4: Simplify right side
    124,600.80x = 10,194,152,909.76
  5. Step 5: Solve for x
    x = 10,194,152,909.76/124,600.80
  6. Step 6: Final answer
    x = 81,814.51

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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.