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Finding the Fourth Proportional to 99,314.40, 148,975.20 and 29,200.80

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Solution

The fourth proportional to 99,314.40, 148,975.20 and 29,200.80 is: 43,802.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,314.40 : 148,975.20 = 29,200.80 : x
  2. Step 2: Convert to fraction form
    99,314.40/148,975.20 = 29,200.80/x
  3. Step 3: Cross multiply
    99,314.40x = 148,975.20 × 29,200.80
  4. Step 4: Simplify right side
    99,314.40x = 4,350,195,020.16
  5. Step 5: Solve for x
    x = 4,350,195,020.16/99,314.40
  6. Step 6: Final answer
    x = 43,802.26

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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.