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Finding the Fourth Proportional to 98,881.81, 136,456.92 and 53,559.65

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Solution

The fourth proportional to 98,881.81, 136,456.92 and 53,559.65 is: 73,912.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,881.81 : 136,456.92 = 53,559.65 : x
  2. Step 2: Convert to fraction form
    98,881.81/136,456.92 = 53,559.65/x
  3. Step 3: Cross multiply
    98,881.81x = 136,456.92 × 53,559.65
  4. Step 4: Simplify right side
    98,881.81x = 7,308,584,526.57
  5. Step 5: Solve for x
    x = 7,308,584,526.57/98,881.81
  6. Step 6: Final answer
    x = 73,912.33

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1.5x scale

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.