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Finding the Fourth Proportional to 108,760.32, 150,074.88 and 61,011.84

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Solution

The fourth proportional to 108,760.32, 150,074.88 and 61,011.84 is: 84,188.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,760.32 : 150,074.88 = 61,011.84 : x
  2. Step 2: Convert to fraction form
    108,760.32/150,074.88 = 61,011.84/x
  3. Step 3: Cross multiply
    108,760.32x = 150,074.88 × 61,011.84
  4. Step 4: Simplify right side
    108,760.32x = 9,156,344,566.58
  5. Step 5: Solve for x
    x = 9,156,344,566.58/108,760.32
  6. Step 6: Final answer
    x = 84,188.28

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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.