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Finding the Fourth Proportional to 83,271.60, 124,907.40 and 60,964.20

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Solution

The fourth proportional to 83,271.60, 124,907.40 and 60,964.20 is: 91,446.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,271.60 : 124,907.40 = 60,964.20 : x
  2. Step 2: Convert to fraction form
    83,271.60/124,907.40 = 60,964.20/x
  3. Step 3: Cross multiply
    83,271.60x = 124,907.40 × 60,964.20
  4. Step 4: Simplify right side
    83,271.60x = 7,614,879,715.08
  5. Step 5: Solve for x
    x = 7,614,879,715.08/83,271.60
  6. Step 6: Final answer
    x = 91,446.30

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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.