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Finding the Fourth Proportional to 495,658.59, 743,488.59 and 121,681.59

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Solution

The fourth proportional to 495,658.59, 743,488.59 and 121,681.59 is: 182,522.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,658.59 : 743,488.59 = 121,681.59 : x
  2. Step 2: Convert to fraction form
    495,658.59/743,488.59 = 121,681.59/x
  3. Step 3: Cross multiply
    495,658.59x = 743,488.59 × 121,681.59
  4. Step 4: Simplify right side
    495,658.59x = 90,468,874,234.36
  5. Step 5: Solve for x
    x = 90,468,874,234.36/495,658.59
  6. Step 6: Final answer
    x = 182,522.56

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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.