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Finding the Fourth Proportional to 98,805.62, 136,351.79 and 53,483.46

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Solution

The fourth proportional to 98,805.62, 136,351.79 and 53,483.46 is: 73,807.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,805.62 : 136,351.79 = 53,483.46 : x
  2. Step 2: Convert to fraction form
    98,805.62/136,351.79 = 53,483.46/x
  3. Step 3: Cross multiply
    98,805.62x = 136,351.79 × 53,483.46
  4. Step 4: Simplify right side
    98,805.62x = 7,292,564,928.22
  5. Step 5: Solve for x
    x = 7,292,564,928.22/98,805.62
  6. Step 6: Final answer
    x = 73,807.19

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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.