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Finding the Fourth Proportional to 121,253.76, 167,314.68 and 70,266.02

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Solution

The fourth proportional to 121,253.76, 167,314.68 and 70,266.02 is: 96,958.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,253.76 : 167,314.68 = 70,266.02 : x
  2. Step 2: Convert to fraction form
    121,253.76/167,314.68 = 70,266.02/x
  3. Step 3: Cross multiply
    121,253.76x = 167,314.68 × 70,266.02
  4. Step 4: Simplify right side
    121,253.76x = 11,756,535,814.60
  5. Step 5: Solve for x
    x = 11,756,535,814.60/121,253.76
  6. Step 6: Final answer
    x = 96,958.11

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Why These Related Problems?

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