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Finding the Fourth Proportional to 242,646.90, 363,905.55 and 74,166.90

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Solution

The fourth proportional to 242,646.90, 363,905.55 and 74,166.90 is: 111,230.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,646.90 : 363,905.55 = 74,166.90 : x
  2. Step 2: Convert to fraction form
    242,646.90/363,905.55 = 74,166.90/x
  3. Step 3: Cross multiply
    242,646.90x = 363,905.55 × 74,166.90
  4. Step 4: Simplify right side
    242,646.90x = 26,989,746,536.30
  5. Step 5: Solve for x
    x = 26,989,746,536.30/242,646.90
  6. Step 6: Final answer
    x = 111,230.54

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1.5x scale

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.