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Finding the Fourth Proportional to 527,008.75, 790,535 and 153,031.75

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Solution

The fourth proportional to 527,008.75, 790,535 and 153,031.75 is: 229,553.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,008.75 : 790,535 = 153,031.75 : x
  2. Step 2: Convert to fraction form
    527,008.75/790,535 = 153,031.75/x
  3. Step 3: Cross multiply
    527,008.75x = 790,535 × 153,031.75
  4. Step 4: Simplify right side
    527,008.75x = 120,976,954,486.25
  5. Step 5: Solve for x
    x = 120,976,954,486.25/527,008.75
  6. Step 6: Final answer
    x = 229,553.98

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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.