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Finding the Fourth Proportional to 491,247.14, 736,870.65 and 136,261.17

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Solution

The fourth proportional to 491,247.14, 736,870.65 and 136,261.17 is: 204,391.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,247.14 : 736,870.65 = 136,261.17 : x
  2. Step 2: Convert to fraction form
    491,247.14/736,870.65 = 136,261.17/x
  3. Step 3: Cross multiply
    491,247.14x = 736,870.65 × 136,261.17
  4. Step 4: Simplify right side
    491,247.14x = 100,406,856,907.66
  5. Step 5: Solve for x
    x = 100,406,856,907.66/491,247.14
  6. Step 6: Final answer
    x = 204,391.74

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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.