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Finding the Fourth Proportional to 356,281.40, 534,422.10 and 119,631.80

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Solution

The fourth proportional to 356,281.40, 534,422.10 and 119,631.80 is: 179,447.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,281.40 : 534,422.10 = 119,631.80 : x
  2. Step 2: Convert to fraction form
    356,281.40/534,422.10 = 119,631.80/x
  3. Step 3: Cross multiply
    356,281.40x = 534,422.10 × 119,631.80
  4. Step 4: Simplify right side
    356,281.40x = 63,933,877,782.78
  5. Step 5: Solve for x
    x = 63,933,877,782.78/356,281.40
  6. Step 6: Final answer
    x = 179,447.70

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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.