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Finding the Fourth Proportional to 98,150.90, 137,722.30 and 98,150.90

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Solution

The fourth proportional to 98,150.90, 137,722.30 and 98,150.90 is: 137,722.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,150.90 : 137,722.30 = 98,150.90 : x
  2. Step 2: Convert to fraction form
    98,150.90/137,722.30 = 98,150.90/x
  3. Step 3: Cross multiply
    98,150.90x = 137,722.30 × 98,150.90
  4. Step 4: Simplify right side
    98,150.90x = 13,517,567,695.07
  5. Step 5: Solve for x
    x = 13,517,567,695.07/98,150.90
  6. Step 6: Final answer
    x = 137,722.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.