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Finding the Fourth Proportional to 608,041.20, 912,061.80 and 164,809.20

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Solution

The fourth proportional to 608,041.20, 912,061.80 and 164,809.20 is: 247,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,041.20 : 912,061.80 = 164,809.20 : x
  2. Step 2: Convert to fraction form
    608,041.20/912,061.80 = 164,809.20/x
  3. Step 3: Cross multiply
    608,041.20x = 912,061.80 × 164,809.20
  4. Step 4: Simplify right side
    608,041.20x = 150,316,175,608.56
  5. Step 5: Solve for x
    x = 150,316,175,608.56/608,041.20
  6. Step 6: Final answer
    x = 247,213.80

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Similar ratio
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1.5x scale

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.