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Finding the Fourth Proportional to 127,074.48, 190,510.56 and 62,987.52

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Solution

The fourth proportional to 127,074.48, 190,510.56 and 62,987.52 is: 94,431.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,074.48 : 190,510.56 = 62,987.52 : x
  2. Step 2: Convert to fraction form
    127,074.48/190,510.56 = 62,987.52/x
  3. Step 3: Cross multiply
    127,074.48x = 190,510.56 × 62,987.52
  4. Step 4: Simplify right side
    127,074.48x = 11,999,787,289.05
  5. Step 5: Solve for x
    x = 11,999,787,289.05/127,074.48
  6. Step 6: Final answer
    x = 94,431.14

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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.