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Finding the Fourth Proportional to 98,768.88, 148,160.88 and 42,610.32

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Solution

The fourth proportional to 98,768.88, 148,160.88 and 42,610.32 is: 63,918.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,768.88 : 148,160.88 = 42,610.32 : x
  2. Step 2: Convert to fraction form
    98,768.88/148,160.88 = 42,610.32/x
  3. Step 3: Cross multiply
    98,768.88x = 148,160.88 × 42,610.32
  4. Step 4: Simplify right side
    98,768.88x = 6,313,182,508.28
  5. Step 5: Solve for x
    x = 6,313,182,508.28/98,768.88
  6. Step 6: Final answer
    x = 63,918.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.