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Finding the Fourth Proportional to 94,573.80, 141,860.70 and 86,586.60

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Solution

The fourth proportional to 94,573.80, 141,860.70 and 86,586.60 is: 129,879.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,573.80 : 141,860.70 = 86,586.60 : x
  2. Step 2: Convert to fraction form
    94,573.80/141,860.70 = 86,586.60/x
  3. Step 3: Cross multiply
    94,573.80x = 141,860.70 × 86,586.60
  4. Step 4: Simplify right side
    94,573.80x = 12,283,235,686.62
  5. Step 5: Solve for x
    x = 12,283,235,686.62/94,573.80
  6. Step 6: Final answer
    x = 129,879.90

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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.