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Finding the Fourth Proportional to 127,008.65, 190,488.68 and 63,811.26

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Solution

The fourth proportional to 127,008.65, 190,488.68 and 63,811.26 is: 95,704.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,008.65 : 190,488.68 = 63,811.26 : x
  2. Step 2: Convert to fraction form
    127,008.65/190,488.68 = 63,811.26/x
  3. Step 3: Cross multiply
    127,008.65x = 190,488.68 × 63,811.26
  4. Step 4: Simplify right side
    127,008.65x = 12,155,322,367.48
  5. Step 5: Solve for x
    x = 12,155,322,367.48/127,008.65
  6. Step 6: Final answer
    x = 95,704.68

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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.