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Finding the Fourth Proportional to 73,161.96, 109,888.76 and 69,035.64

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Solution

The fourth proportional to 73,161.96, 109,888.76 and 69,035.64 is: 103,691.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,161.96 : 109,888.76 = 69,035.64 : x
  2. Step 2: Convert to fraction form
    73,161.96/109,888.76 = 69,035.64/x
  3. Step 3: Cross multiply
    73,161.96x = 109,888.76 × 69,035.64
  4. Step 4: Simplify right side
    73,161.96x = 7,586,240,875.41
  5. Step 5: Solve for x
    x = 7,586,240,875.41/73,161.96
  6. Step 6: Final answer
    x = 103,691.06

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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.