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Finding the Fourth Proportional to 207,353, 286,181.70 and 156,964.52

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Solution

The fourth proportional to 207,353, 286,181.70 and 156,964.52 is: 216,637.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,353 : 286,181.70 = 156,964.52 : x
  2. Step 2: Convert to fraction form
    207,353/286,181.70 = 156,964.52/x
  3. Step 3: Cross multiply
    207,353x = 286,181.70 × 156,964.52
  4. Step 4: Simplify right side
    207,353x = 44,920,373,173.28
  5. Step 5: Solve for x
    x = 44,920,373,173.28/207,353
  6. Step 6: Final answer
    x = 216,637.20

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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.