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Finding the Fourth Proportional to 212,116.97, 292,713.90 and 116,622.92

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Solution

The fourth proportional to 212,116.97, 292,713.90 and 116,622.92 is: 160,935.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,116.97 : 292,713.90 = 116,622.92 : x
  2. Step 2: Convert to fraction form
    212,116.97/292,713.90 = 116,622.92/x
  3. Step 3: Cross multiply
    212,116.97x = 292,713.90 × 116,622.92
  4. Step 4: Simplify right side
    212,116.97x = 34,137,148,279.02
  5. Step 5: Solve for x
    x = 34,137,148,279.02/212,116.97
  6. Step 6: Final answer
    x = 160,935.49

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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.