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Finding the Fourth Proportional to 121,527.67, 167,683.14 and 69,834.77

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Solution

The fourth proportional to 121,527.67, 167,683.14 and 69,834.77 is: 96,357.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,527.67 : 167,683.14 = 69,834.77 : x
  2. Step 2: Convert to fraction form
    121,527.67/167,683.14 = 69,834.77/x
  3. Step 3: Cross multiply
    121,527.67x = 167,683.14 × 69,834.77
  4. Step 4: Simplify right side
    121,527.67x = 11,710,113,514.78
  5. Step 5: Solve for x
    x = 11,710,113,514.78/121,527.67
  6. Step 6: Final answer
    x = 96,357.59

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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.