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Finding the Fourth Proportional to 230,351.20, 317,776 and 134,798.76

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Solution

The fourth proportional to 230,351.20, 317,776 and 134,798.76 is: 185,958.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,351.20 : 317,776 = 134,798.76 : x
  2. Step 2: Convert to fraction form
    230,351.20/317,776 = 134,798.76/x
  3. Step 3: Cross multiply
    230,351.20x = 317,776 × 134,798.76
  4. Step 4: Simplify right side
    230,351.20x = 42,835,810,757.76
  5. Step 5: Solve for x
    x = 42,835,810,757.76/230,351.20
  6. Step 6: Final answer
    x = 185,958.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.