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Finding the Fourth Proportional to 240,539.68, 360,615.08 and 100,403.20

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Solution

The fourth proportional to 240,539.68, 360,615.08 and 100,403.20 is: 150,523.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,539.68 : 360,615.08 = 100,403.20 : x
  2. Step 2: Convert to fraction form
    240,539.68/360,615.08 = 100,403.20/x
  3. Step 3: Cross multiply
    240,539.68x = 360,615.08 × 100,403.20
  4. Step 4: Simplify right side
    240,539.68x = 36,206,908,000.26
  5. Step 5: Solve for x
    x = 36,206,908,000.26/240,539.68
  6. Step 6: Final answer
    x = 150,523.64

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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.