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Finding the Fourth Proportional to 461,859.76, 692,809.20 and 146,309.68

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Solution

The fourth proportional to 461,859.76, 692,809.20 and 146,309.68 is: 219,470.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,859.76 : 692,809.20 = 146,309.68 : x
  2. Step 2: Convert to fraction form
    461,859.76/692,809.20 = 146,309.68/x
  3. Step 3: Cross multiply
    461,859.76x = 692,809.20 × 146,309.68
  4. Step 4: Simplify right side
    461,859.76x = 101,364,692,353.06
  5. Step 5: Solve for x
    x = 101,364,692,353.06/461,859.76
  6. Step 6: Final answer
    x = 219,470.72

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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.