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Finding the Fourth Proportional to 180,870.60, 271,403.10 and 75,700.20

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Solution

The fourth proportional to 180,870.60, 271,403.10 and 75,700.20 is: 113,590.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,870.60 : 271,403.10 = 75,700.20 : x
  2. Step 2: Convert to fraction form
    180,870.60/271,403.10 = 75,700.20/x
  3. Step 3: Cross multiply
    180,870.60x = 271,403.10 × 75,700.20
  4. Step 4: Simplify right side
    180,870.60x = 20,545,268,950.62
  5. Step 5: Solve for x
    x = 20,545,268,950.62/180,870.60
  6. Step 6: Final answer
    x = 113,590.98

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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.