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Finding the Fourth Proportional to 162,098.01, 242,820.84 and 80,799.68

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Solution

The fourth proportional to 162,098.01, 242,820.84 and 80,799.68 is: 121,036.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,098.01 : 242,820.84 = 80,799.68 : x
  2. Step 2: Convert to fraction form
    162,098.01/242,820.84 = 80,799.68/x
  3. Step 3: Cross multiply
    162,098.01x = 242,820.84 × 80,799.68
  4. Step 4: Simplify right side
    162,098.01x = 19,619,845,259.02
  5. Step 5: Solve for x
    x = 19,619,845,259.02/162,098.01
  6. Step 6: Final answer
    x = 121,036.93

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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.