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Finding the Fourth Proportional to 288,556.05, 432,315.68 and 247,084.05

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Solution

The fourth proportional to 288,556.05, 432,315.68 and 247,084.05 is: 370,182.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,556.05 : 432,315.68 = 247,084.05 : x
  2. Step 2: Convert to fraction form
    288,556.05/432,315.68 = 247,084.05/x
  3. Step 3: Cross multiply
    288,556.05x = 432,315.68 × 247,084.05
  4. Step 4: Simplify right side
    288,556.05x = 106,818,307,857.48
  5. Step 5: Solve for x
    x = 106,818,307,857.48/288,556.05
  6. Step 6: Final answer
    x = 370,182.18

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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.