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Finding the Fourth Proportional to 108,752.92, 150,078.12 and 61,005.24

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Solution

The fourth proportional to 108,752.92, 150,078.12 and 61,005.24 is: 84,186.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,752.92 : 150,078.12 = 61,005.24 : x
  2. Step 2: Convert to fraction form
    108,752.92/150,078.12 = 61,005.24/x
  3. Step 3: Cross multiply
    108,752.92x = 150,078.12 × 61,005.24
  4. Step 4: Simplify right side
    108,752.92x = 9,155,551,729.35
  5. Step 5: Solve for x
    x = 9,155,551,729.35/108,752.92
  6. Step 6: Final answer
    x = 84,186.72

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1.5x scale

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.