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Finding the Fourth Proportional to 118,791.11, 163,886.06 and 67,806.68

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Solution

The fourth proportional to 118,791.11, 163,886.06 and 67,806.68 is: 93,547.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,791.11 : 163,886.06 = 67,806.68 : x
  2. Step 2: Convert to fraction form
    118,791.11/163,886.06 = 67,806.68/x
  3. Step 3: Cross multiply
    118,791.11x = 163,886.06 × 67,806.68
  4. Step 4: Simplify right side
    118,791.11x = 11,112,568,468.42
  5. Step 5: Solve for x
    x = 11,112,568,468.42/118,791.11
  6. Step 6: Final answer
    x = 93,547.14

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1.5x scale

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.