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Finding the Fourth Proportional to 240,804.48, 361,180.80 and 72,307.20

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Solution

The fourth proportional to 240,804.48, 361,180.80 and 72,307.20 is: 108,453.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,804.48 : 361,180.80 = 72,307.20 : x
  2. Step 2: Convert to fraction form
    240,804.48/361,180.80 = 72,307.20/x
  3. Step 3: Cross multiply
    240,804.48x = 361,180.80 × 72,307.20
  4. Step 4: Simplify right side
    240,804.48x = 26,115,972,341.76
  5. Step 5: Solve for x
    x = 26,115,972,341.76/240,804.48
  6. Step 6: Final answer
    x = 108,453.02

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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.