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Finding the Fourth Proportional to 242,655.51, 363,984.15 and 74,175.18

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Solution

The fourth proportional to 242,655.51, 363,984.15 and 74,175.18 is: 111,263.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,655.51 : 363,984.15 = 74,175.18 : x
  2. Step 2: Convert to fraction form
    242,655.51/363,984.15 = 74,175.18/x
  3. Step 3: Cross multiply
    242,655.51x = 363,984.15 × 74,175.18
  4. Step 4: Simplify right side
    242,655.51x = 26,998,589,843.40
  5. Step 5: Solve for x
    x = 26,998,589,843.40/242,655.51
  6. Step 6: Final answer
    x = 111,263.04

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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.