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Finding the Fourth Proportional to 107,775.66, 161,387.46 and 89,962.03

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Solution

The fourth proportional to 107,775.66, 161,387.46 and 89,962.03 is: 134,712.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,775.66 : 161,387.46 = 89,962.03 : x
  2. Step 2: Convert to fraction form
    107,775.66/161,387.46 = 89,962.03/x
  3. Step 3: Cross multiply
    107,775.66x = 161,387.46 × 89,962.03
  4. Step 4: Simplify right side
    107,775.66x = 14,518,744,258.97
  5. Step 5: Solve for x
    x = 14,518,744,258.97/107,775.66
  6. Step 6: Final answer
    x = 134,712.64

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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.