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Finding the Fourth Proportional to 117,738.36, 162,479.74 and 64,023.96

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Solution

The fourth proportional to 117,738.36, 162,479.74 and 64,023.96 is: 88,353.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,738.36 : 162,479.74 = 64,023.96 : x
  2. Step 2: Convert to fraction form
    117,738.36/162,479.74 = 64,023.96/x
  3. Step 3: Cross multiply
    117,738.36x = 162,479.74 × 64,023.96
  4. Step 4: Simplify right side
    117,738.36x = 10,402,596,374.57
  5. Step 5: Solve for x
    x = 10,402,596,374.57/117,738.36
  6. Step 6: Final answer
    x = 88,353.50

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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.