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Finding the Fourth Proportional to 608,216.80, 912,337.35 and 158,909.80

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Solution

The fourth proportional to 608,216.80, 912,337.35 and 158,909.80 is: 238,367.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,216.80 : 912,337.35 = 158,909.80 : x
  2. Step 2: Convert to fraction form
    608,216.80/912,337.35 = 158,909.80/x
  3. Step 3: Cross multiply
    608,216.80x = 912,337.35 × 158,909.80
  4. Step 4: Simplify right side
    608,216.80x = 144,979,345,821.03
  5. Step 5: Solve for x
    x = 144,979,345,821.03/608,216.80
  6. Step 6: Final answer
    x = 238,367.87

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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.