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Finding the Fourth Proportional to 117,758.40, 162,484.56 and 70,023.48

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Solution

The fourth proportional to 117,758.40, 162,484.56 and 70,023.48 is: 96,619.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,758.40 : 162,484.56 = 70,023.48 : x
  2. Step 2: Convert to fraction form
    117,758.40/162,484.56 = 70,023.48/x
  3. Step 3: Cross multiply
    117,758.40x = 162,484.56 × 70,023.48
  4. Step 4: Simplify right side
    117,758.40x = 11,377,734,337.47
  5. Step 5: Solve for x
    x = 11,377,734,337.47/117,758.40
  6. Step 6: Final answer
    x = 96,619.30

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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.