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Finding the Fourth Proportional to 157,246.80, 235,870.20 and 104,758.80

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Solution

The fourth proportional to 157,246.80, 235,870.20 and 104,758.80 is: 157,138.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,246.80 : 235,870.20 = 104,758.80 : x
  2. Step 2: Convert to fraction form
    157,246.80/235,870.20 = 104,758.80/x
  3. Step 3: Cross multiply
    157,246.80x = 235,870.20 × 104,758.80
  4. Step 4: Simplify right side
    157,246.80x = 24,709,479,107.76
  5. Step 5: Solve for x
    x = 24,709,479,107.76/157,246.80
  6. Step 6: Final answer
    x = 157,138.20

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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.