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Finding the Fourth Proportional to 242,556.55, 363,826.62 and 74,070.07

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Solution

The fourth proportional to 242,556.55, 363,826.62 and 74,070.07 is: 111,102.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,556.55 : 363,826.62 = 74,070.07 : x
  2. Step 2: Convert to fraction form
    242,556.55/363,826.62 = 74,070.07/x
  3. Step 3: Cross multiply
    242,556.55x = 363,826.62 × 74,070.07
  4. Step 4: Simplify right side
    242,556.55x = 26,948,662,301.70
  5. Step 5: Solve for x
    x = 26,948,662,301.70/242,556.55
  6. Step 6: Final answer
    x = 111,102.60

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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.