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Finding the Fourth Proportional to 118,383.85, 163,373.23 and 64,669.76

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Solution

The fourth proportional to 118,383.85, 163,373.23 and 64,669.76 is: 89,246.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,383.85 : 163,373.23 = 64,669.76 : x
  2. Step 2: Convert to fraction form
    118,383.85/163,373.23 = 64,669.76/x
  3. Step 3: Cross multiply
    118,383.85x = 163,373.23 × 64,669.76
  4. Step 4: Simplify right side
    118,383.85x = 10,565,307,574.52
  5. Step 5: Solve for x
    x = 10,565,307,574.52/118,383.85
  6. Step 6: Final answer
    x = 89,246.19

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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.