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Finding the Fourth Proportional to 304,657.56, 457,079.76 and 136,319.58

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Solution

The fourth proportional to 304,657.56, 457,079.76 and 136,319.58 is: 204,521.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,657.56 : 457,079.76 = 136,319.58 : x
  2. Step 2: Convert to fraction form
    304,657.56/457,079.76 = 136,319.58/x
  3. Step 3: Cross multiply
    304,657.56x = 457,079.76 × 136,319.58
  4. Step 4: Simplify right side
    304,657.56x = 62,308,920,909.70
  5. Step 5: Solve for x
    x = 62,308,920,909.70/304,657.56
  6. Step 6: Final answer
    x = 204,521.17

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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.