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Finding the Fourth Proportional to 97,538.85, 134,602.80 and 68,508.01

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Solution

The fourth proportional to 97,538.85, 134,602.80 and 68,508.01 is: 94,540.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,538.85 : 134,602.80 = 68,508.01 : x
  2. Step 2: Convert to fraction form
    97,538.85/134,602.80 = 68,508.01/x
  3. Step 3: Cross multiply
    97,538.85x = 134,602.80 × 68,508.01
  4. Step 4: Simplify right side
    97,538.85x = 9,221,369,879.78
  5. Step 5: Solve for x
    x = 9,221,369,879.78/97,538.85
  6. Step 6: Final answer
    x = 94,540.48

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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.