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Finding the Fourth Proportional to 98,239.47, 135,570.47 and 53,527.47

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Solution

The fourth proportional to 98,239.47, 135,570.47 and 53,527.47 is: 73,867.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,239.47 : 135,570.47 = 53,527.47 : x
  2. Step 2: Convert to fraction form
    98,239.47/135,570.47 = 53,527.47/x
  3. Step 3: Cross multiply
    98,239.47x = 135,570.47 × 53,527.47
  4. Step 4: Simplify right side
    98,239.47x = 7,256,744,265.81
  5. Step 5: Solve for x
    x = 7,256,744,265.81/98,239.47
  6. Step 6: Final answer
    x = 73,867.91

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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.