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Finding the Fourth Proportional to 240,007.40, 359,723.10 and 99,693.80

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Solution

The fourth proportional to 240,007.40, 359,723.10 and 99,693.80 is: 149,421.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,007.40 : 359,723.10 = 99,693.80 : x
  2. Step 2: Convert to fraction form
    240,007.40/359,723.10 = 99,693.80/x
  3. Step 3: Cross multiply
    240,007.40x = 359,723.10 × 99,693.80
  4. Step 4: Simplify right side
    240,007.40x = 35,862,162,786.78
  5. Step 5: Solve for x
    x = 35,862,162,786.78/240,007.40
  6. Step 6: Final answer
    x = 149,421.07

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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.