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Finding the Fourth Proportional to 127,197.52, 175,611.72 and 98,465.20

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Solution

The fourth proportional to 127,197.52, 175,611.72 and 98,465.20 is: 135,943.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,197.52 : 175,611.72 = 98,465.20 : x
  2. Step 2: Convert to fraction form
    127,197.52/175,611.72 = 98,465.20/x
  3. Step 3: Cross multiply
    127,197.52x = 175,611.72 × 98,465.20
  4. Step 4: Simplify right side
    127,197.52x = 17,291,643,132.14
  5. Step 5: Solve for x
    x = 17,291,643,132.14/127,197.52
  6. Step 6: Final answer
    x = 135,943.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.