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Finding the Fourth Proportional to 121,143.60, 167,176.71 and 70,842.60

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Solution

The fourth proportional to 121,143.60, 167,176.71 and 70,842.60 is: 97,761.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,143.60 : 167,176.71 = 70,842.60 : x
  2. Step 2: Convert to fraction form
    121,143.60/167,176.71 = 70,842.60/x
  3. Step 3: Cross multiply
    121,143.60x = 167,176.71 × 70,842.60
  4. Step 4: Simplify right side
    121,143.60x = 11,843,232,795.85
  5. Step 5: Solve for x
    x = 11,843,232,795.85/121,143.60
  6. Step 6: Final answer
    x = 97,761.94

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.