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Finding the Fourth Proportional to 95,833.80, 143,750.70 and 86,016.60

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Solution

The fourth proportional to 95,833.80, 143,750.70 and 86,016.60 is: 129,024.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,833.80 : 143,750.70 = 86,016.60 : x
  2. Step 2: Convert to fraction form
    95,833.80/143,750.70 = 86,016.60/x
  3. Step 3: Cross multiply
    95,833.80x = 143,750.70 × 86,016.60
  4. Step 4: Simplify right side
    95,833.80x = 12,364,946,461.62
  5. Step 5: Solve for x
    x = 12,364,946,461.62/95,833.80
  6. Step 6: Final answer
    x = 129,024.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.