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Finding the Fourth Proportional to 94,585.80, 141,878.70 and 86,598.60

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Solution

The fourth proportional to 94,585.80, 141,878.70 and 86,598.60 is: 129,897.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,585.80 : 141,878.70 = 86,598.60 : x
  2. Step 2: Convert to fraction form
    94,585.80/141,878.70 = 86,598.60/x
  3. Step 3: Cross multiply
    94,585.80x = 141,878.70 × 86,598.60
  4. Step 4: Simplify right side
    94,585.80x = 12,286,496,789.82
  5. Step 5: Solve for x
    x = 12,286,496,789.82/94,585.80
  6. Step 6: Final answer
    x = 129,897.90

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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.