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Finding the Fourth Proportional to 208,161.57, 287,269.92 and 127,573.52

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Solution

The fourth proportional to 208,161.57, 287,269.92 and 127,573.52 is: 176,055.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,161.57 : 287,269.92 = 127,573.52 : x
  2. Step 2: Convert to fraction form
    208,161.57/287,269.92 = 127,573.52/x
  3. Step 3: Cross multiply
    208,161.57x = 287,269.92 × 127,573.52
  4. Step 4: Simplify right side
    208,161.57x = 36,648,034,884.52
  5. Step 5: Solve for x
    x = 36,648,034,884.52/208,161.57
  6. Step 6: Final answer
    x = 176,055.72

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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.