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Finding the Fourth Proportional to 103,388.80, 142,677.84 and 60,944.80

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Solution

The fourth proportional to 103,388.80, 142,677.84 and 60,944.80 is: 84,104.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,388.80 : 142,677.84 = 60,944.80 : x
  2. Step 2: Convert to fraction form
    103,388.80/142,677.84 = 60,944.80/x
  3. Step 3: Cross multiply
    103,388.80x = 142,677.84 × 60,944.80
  4. Step 4: Simplify right side
    103,388.80x = 8,695,472,423.23
  5. Step 5: Solve for x
    x = 8,695,472,423.23/103,388.80
  6. Step 6: Final answer
    x = 84,104.59

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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.