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Finding the Fourth Proportional to 94,586.80, 141,880.20 and 86,599.60

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Solution

The fourth proportional to 94,586.80, 141,880.20 and 86,599.60 is: 129,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,586.80 : 141,880.20 = 86,599.60 : x
  2. Step 2: Convert to fraction form
    94,586.80/141,880.20 = 86,599.60/x
  3. Step 3: Cross multiply
    94,586.80x = 141,880.20 × 86,599.60
  4. Step 4: Simplify right side
    94,586.80x = 12,286,768,567.92
  5. Step 5: Solve for x
    x = 12,286,768,567.92/94,586.80
  6. Step 6: Final answer
    x = 129,899.40

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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.