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Finding the Fourth Proportional to 118,348.65, 163,322.25 and 67,358.88

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Solution

The fourth proportional to 118,348.65, 163,322.25 and 67,358.88 is: 92,955.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,348.65 : 163,322.25 = 67,358.88 : x
  2. Step 2: Convert to fraction form
    118,348.65/163,322.25 = 67,358.88/x
  3. Step 3: Cross multiply
    118,348.65x = 163,322.25 × 67,358.88
  4. Step 4: Simplify right side
    118,348.65x = 11,001,203,839.08
  5. Step 5: Solve for x
    x = 11,001,203,839.08/118,348.65
  6. Step 6: Final answer
    x = 92,955.89

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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.