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Finding the Fourth Proportional to 107,808.10, 161,712.15 and 97,440.10

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Solution

The fourth proportional to 107,808.10, 161,712.15 and 97,440.10 is: 146,160.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,808.10 : 161,712.15 = 97,440.10 : x
  2. Step 2: Convert to fraction form
    107,808.10/161,712.15 = 97,440.10/x
  3. Step 3: Cross multiply
    107,808.10x = 161,712.15 × 97,440.10
  4. Step 4: Simplify right side
    107,808.10x = 15,757,248,067.22
  5. Step 5: Solve for x
    x = 15,757,248,067.22/107,808.10
  6. Step 6: Final answer
    x = 146,160.15

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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.