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Finding the Fourth Proportional to 109,701.70, 151,392.48 and 61,962.22

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Solution

The fourth proportional to 109,701.70, 151,392.48 and 61,962.22 is: 85,510.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,701.70 : 151,392.48 = 61,962.22 : x
  2. Step 2: Convert to fraction form
    109,701.70/151,392.48 = 61,962.22/x
  3. Step 3: Cross multiply
    109,701.70x = 151,392.48 × 61,962.22
  4. Step 4: Simplify right side
    109,701.70x = 9,380,614,152.11
  5. Step 5: Solve for x
    x = 9,380,614,152.11/109,701.70
  6. Step 6: Final answer
    x = 85,510.20

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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.