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Finding the Fourth Proportional to 240,602.88, 360,954.12 and 72,116.40

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Solution

The fourth proportional to 240,602.88, 360,954.12 and 72,116.40 is: 108,189.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,602.88 : 360,954.12 = 72,116.40 : x
  2. Step 2: Convert to fraction form
    240,602.88/360,954.12 = 72,116.40/x
  3. Step 3: Cross multiply
    240,602.88x = 360,954.12 × 72,116.40
  4. Step 4: Simplify right side
    240,602.88x = 26,030,711,699.57
  5. Step 5: Solve for x
    x = 26,030,711,699.57/240,602.88
  6. Step 6: Final answer
    x = 108,189.53

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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.