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Finding the Fourth Proportional to 118,063.91, 162,931.77 and 64,352.41

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Solution

The fourth proportional to 118,063.91, 162,931.77 and 64,352.41 is: 88,808.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,063.91 : 162,931.77 = 64,352.41 : x
  2. Step 2: Convert to fraction form
    118,063.91/162,931.77 = 64,352.41/x
  3. Step 3: Cross multiply
    118,063.91x = 162,931.77 × 64,352.41
  4. Step 4: Simplify right side
    118,063.91x = 10,485,051,657.74
  5. Step 5: Solve for x
    x = 10,485,051,657.74/118,063.91
  6. Step 6: Final answer
    x = 88,808.27

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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.