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Finding the Fourth Proportional to 118,745.16, 163,886.76 and 67,757.76

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Solution

The fourth proportional to 118,745.16, 163,886.76 and 67,757.76 is: 93,516.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,745.16 : 163,886.76 = 67,757.76 : x
  2. Step 2: Convert to fraction form
    118,745.16/163,886.76 = 67,757.76/x
  3. Step 3: Cross multiply
    118,745.16x = 163,886.76 × 67,757.76
  4. Step 4: Simplify right side
    118,745.16x = 11,104,599,751.26
  5. Step 5: Solve for x
    x = 11,104,599,751.26/118,745.16
  6. Step 6: Final answer
    x = 93,516.23

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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.