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Finding the Fourth Proportional to 230,719.80, 346,079.70 and 141,684.60

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Solution

The fourth proportional to 230,719.80, 346,079.70 and 141,684.60 is: 212,526.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,719.80 : 346,079.70 = 141,684.60 : x
  2. Step 2: Convert to fraction form
    230,719.80/346,079.70 = 141,684.60/x
  3. Step 3: Cross multiply
    230,719.80x = 346,079.70 × 141,684.60
  4. Step 4: Simplify right side
    230,719.80x = 49,034,163,862.62
  5. Step 5: Solve for x
    x = 49,034,163,862.62/230,719.80
  6. Step 6: Final answer
    x = 212,526.90

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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.