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Finding the Fourth Proportional to 112,468.32, 155,200.92 and 61,483.68

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Solution

The fourth proportional to 112,468.32, 155,200.92 and 61,483.68 is: 84,844.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,468.32 : 155,200.92 = 61,483.68 : x
  2. Step 2: Convert to fraction form
    112,468.32/155,200.92 = 61,483.68/x
  3. Step 3: Cross multiply
    112,468.32x = 155,200.92 × 61,483.68
  4. Step 4: Simplify right side
    112,468.32x = 9,542,323,700.99
  5. Step 5: Solve for x
    x = 9,542,323,700.99/112,468.32
  6. Step 6: Final answer
    x = 84,844.55

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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.