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Finding the Fourth Proportional to 151,697.78, 209,254.56 and 97,230.54

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Solution

The fourth proportional to 151,697.78, 209,254.56 and 97,230.54 is: 134,121.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,697.78 : 209,254.56 = 97,230.54 : x
  2. Step 2: Convert to fraction form
    151,697.78/209,254.56 = 97,230.54/x
  3. Step 3: Cross multiply
    151,697.78x = 209,254.56 × 97,230.54
  4. Step 4: Simplify right side
    151,697.78x = 20,345,933,866.26
  5. Step 5: Solve for x
    x = 20,345,933,866.26/151,697.78
  6. Step 6: Final answer
    x = 134,121.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.