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Finding the Fourth Proportional to 159,140.70, 238,711.05 and 148,643.10

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Solution

The fourth proportional to 159,140.70, 238,711.05 and 148,643.10 is: 222,964.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,140.70 : 238,711.05 = 148,643.10 : x
  2. Step 2: Convert to fraction form
    159,140.70/238,711.05 = 148,643.10/x
  3. Step 3: Cross multiply
    159,140.70x = 238,711.05 × 148,643.10
  4. Step 4: Simplify right side
    159,140.70x = 35,482,750,476.26
  5. Step 5: Solve for x
    x = 35,482,750,476.26/159,140.70
  6. Step 6: Final answer
    x = 222,964.65

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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.