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Finding the Fourth Proportional to 242,597.90, 363,832.05 and 74,117.90

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Solution

The fourth proportional to 242,597.90, 363,832.05 and 74,117.90 is: 111,157.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,597.90 : 363,832.05 = 74,117.90 : x
  2. Step 2: Convert to fraction form
    242,597.90/363,832.05 = 74,117.90/x
  3. Step 3: Cross multiply
    242,597.90x = 363,832.05 × 74,117.90
  4. Step 4: Simplify right side
    242,597.90x = 26,966,467,498.70
  5. Step 5: Solve for x
    x = 26,966,467,498.70/242,597.90
  6. Step 6: Final answer
    x = 111,157.05

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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.