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Finding the Fourth Proportional to 107,435.67, 161,041.11 and 59,981.16

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Solution

The fourth proportional to 107,435.67, 161,041.11 and 59,981.16 is: 89,908.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,435.67 : 161,041.11 = 59,981.16 : x
  2. Step 2: Convert to fraction form
    107,435.67/161,041.11 = 59,981.16/x
  3. Step 3: Cross multiply
    107,435.67x = 161,041.11 × 59,981.16
  4. Step 4: Simplify right side
    107,435.67x = 9,659,432,396.00
  5. Step 5: Solve for x
    x = 9,659,432,396.00/107,435.67
  6. Step 6: Final answer
    x = 89,908.99

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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.