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Finding the Fourth Proportional to 110,643.60, 152,697.24 and 62,911.92

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Solution

The fourth proportional to 110,643.60, 152,697.24 and 62,911.92 is: 86,823.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,643.60 : 152,697.24 = 62,911.92 : x
  2. Step 2: Convert to fraction form
    110,643.60/152,697.24 = 62,911.92/x
  3. Step 3: Cross multiply
    110,643.60x = 152,697.24 × 62,911.92
  4. Step 4: Simplify right side
    110,643.60x = 9,606,476,547.10
  5. Step 5: Solve for x
    x = 9,606,476,547.10/110,643.60
  6. Step 6: Final answer
    x = 86,823.61

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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.