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Finding the Fourth Proportional to 207,343, 286,167.90 and 156,954.52

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Solution

The fourth proportional to 207,343, 286,167.90 and 156,954.52 is: 216,623.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,343 : 286,167.90 = 156,954.52 : x
  2. Step 2: Convert to fraction form
    207,343/286,167.90 = 156,954.52/x
  3. Step 3: Cross multiply
    207,343x = 286,167.90 × 156,954.52
  4. Step 4: Simplify right side
    207,343x = 44,915,345,383.91
  5. Step 5: Solve for x
    x = 44,915,345,383.91/207,343
  6. Step 6: Final answer
    x = 216,623.40

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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.