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Finding the Fourth Proportional to 244,291.90, 366,502.65 and 86,503.90

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Solution

The fourth proportional to 244,291.90, 366,502.65 and 86,503.90 is: 129,778.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,291.90 : 366,502.65 = 86,503.90 : x
  2. Step 2: Convert to fraction form
    244,291.90/366,502.65 = 86,503.90/x
  3. Step 3: Cross multiply
    244,291.90x = 366,502.65 × 86,503.90
  4. Step 4: Simplify right side
    244,291.90x = 31,703,908,585.34
  5. Step 5: Solve for x
    x = 31,703,908,585.34/244,291.90
  6. Step 6: Final answer
    x = 129,778.80

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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.