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Finding the Fourth Proportional to 107,810.30, 161,715.45 and 92,258.30

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Solution

The fourth proportional to 107,810.30, 161,715.45 and 92,258.30 is: 138,387.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,810.30 : 161,715.45 = 92,258.30 : x
  2. Step 2: Convert to fraction form
    107,810.30/161,715.45 = 92,258.30/x
  3. Step 3: Cross multiply
    107,810.30x = 161,715.45 × 92,258.30
  4. Step 4: Simplify right side
    107,810.30x = 14,919,592,500.74
  5. Step 5: Solve for x
    x = 14,919,592,500.74/107,810.30
  6. Step 6: Final answer
    x = 138,387.45

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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.