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Finding the Fourth Proportional to 322,765.66, 484,130.96 and 98,108.58

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Solution

The fourth proportional to 322,765.66, 484,130.96 and 98,108.58 is: 147,157.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,765.66 : 484,130.96 = 98,108.58 : x
  2. Step 2: Convert to fraction form
    322,765.66/484,130.96 = 98,108.58/x
  3. Step 3: Cross multiply
    322,765.66x = 484,130.96 × 98,108.58
  4. Step 4: Simplify right side
    322,765.66x = 47,497,402,712.49
  5. Step 5: Solve for x
    x = 47,497,402,712.49/322,765.66
  6. Step 6: Final answer
    x = 147,157.55

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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.