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Finding the Fourth Proportional to 144,388.52, 216,610.20 and 65,509.16

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Solution

The fourth proportional to 144,388.52, 216,610.20 and 65,509.16 is: 98,276.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,388.52 : 216,610.20 = 65,509.16 : x
  2. Step 2: Convert to fraction form
    144,388.52/216,610.20 = 65,509.16/x
  3. Step 3: Cross multiply
    144,388.52x = 216,610.20 × 65,509.16
  4. Step 4: Simplify right side
    144,388.52x = 14,189,952,249.43
  5. Step 5: Solve for x
    x = 14,189,952,249.43/144,388.52
  6. Step 6: Final answer
    x = 98,276.18

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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.