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Finding the Fourth Proportional to 508,713.30, 763,179.30 and 153,763.20

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Solution

The fourth proportional to 508,713.30, 763,179.30 and 153,763.20 is: 230,677.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,713.30 : 763,179.30 = 153,763.20 : x
  2. Step 2: Convert to fraction form
    508,713.30/763,179.30 = 153,763.20/x
  3. Step 3: Cross multiply
    508,713.30x = 763,179.30 × 153,763.20
  4. Step 4: Simplify right side
    508,713.30x = 117,348,891,341.76
  5. Step 5: Solve for x
    x = 117,348,891,341.76/508,713.30
  6. Step 6: Final answer
    x = 230,677.85

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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.