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Finding the Fourth Proportional to 355,064.60, 532,337.70 and 144,594.20

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Solution

The fourth proportional to 355,064.60, 532,337.70 and 144,594.20 is: 216,785.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,064.60 : 532,337.70 = 144,594.20 : x
  2. Step 2: Convert to fraction form
    355,064.60/532,337.70 = 144,594.20/x
  3. Step 3: Cross multiply
    355,064.60x = 532,337.70 × 144,594.20
  4. Step 4: Simplify right side
    355,064.60x = 76,972,943,861.34
  5. Step 5: Solve for x
    x = 76,972,943,861.34/355,064.60
  6. Step 6: Final answer
    x = 216,785.75

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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.