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Finding the Fourth Proportional to 357,367.14, 535,931.70 and 144,079.96

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Solution

The fourth proportional to 357,367.14, 535,931.70 and 144,079.96 is: 216,071.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,367.14 : 535,931.70 = 144,079.96 : x
  2. Step 2: Convert to fraction form
    357,367.14/535,931.70 = 144,079.96/x
  3. Step 3: Cross multiply
    357,367.14x = 535,931.70 × 144,079.96
  4. Step 4: Simplify right side
    357,367.14x = 77,217,017,898.73
  5. Step 5: Solve for x
    x = 77,217,017,898.73/357,367.14
  6. Step 6: Final answer
    x = 216,071.96

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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.