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Finding the Fourth Proportional to 98,897.30, 148,290.05 and 38,944.34

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Solution

The fourth proportional to 98,897.30, 148,290.05 and 38,944.34 is: 58,394.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,897.30 : 148,290.05 = 38,944.34 : x
  2. Step 2: Convert to fraction form
    98,897.30/148,290.05 = 38,944.34/x
  3. Step 3: Cross multiply
    98,897.30x = 148,290.05 × 38,944.34
  4. Step 4: Simplify right side
    98,897.30x = 5,775,057,384.37
  5. Step 5: Solve for x
    x = 5,775,057,384.37/98,897.30
  6. Step 6: Final answer
    x = 58,394.49

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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.