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Finding the Fourth Proportional to 493,890.81, 740,758.98 and 156,887.13

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Solution

The fourth proportional to 493,890.81, 740,758.98 and 156,887.13 is: 235,306.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,890.81 : 740,758.98 = 156,887.13 : x
  2. Step 2: Convert to fraction form
    493,890.81/740,758.98 = 156,887.13/x
  3. Step 3: Cross multiply
    493,890.81x = 740,758.98 × 156,887.13
  4. Step 4: Simplify right side
    493,890.81x = 116,215,550,393.93
  5. Step 5: Solve for x
    x = 116,215,550,393.93/493,890.81
  6. Step 6: Final answer
    x = 235,306.16

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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.