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Finding the Fourth Proportional to 108,129.54, 162,223.56 and 97,719.42

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Solution

The fourth proportional to 108,129.54, 162,223.56 and 97,719.42 is: 146,605.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,129.54 : 162,223.56 = 97,719.42 : x
  2. Step 2: Convert to fraction form
    108,129.54/162,223.56 = 97,719.42/x
  3. Step 3: Cross multiply
    108,129.54x = 162,223.56 × 97,719.42
  4. Step 4: Simplify right side
    108,129.54x = 15,852,392,193.54
  5. Step 5: Solve for x
    x = 15,852,392,193.54/108,129.54
  6. Step 6: Final answer
    x = 146,605.56

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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.