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Finding the Fourth Proportional to 291,272.52, 401,909.13 and 183,900.54

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Solution

The fourth proportional to 291,272.52, 401,909.13 and 183,900.54 is: 253,753.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,272.52 : 401,909.13 = 183,900.54 : x
  2. Step 2: Convert to fraction form
    291,272.52/401,909.13 = 183,900.54/x
  3. Step 3: Cross multiply
    291,272.52x = 401,909.13 × 183,900.54
  4. Step 4: Simplify right side
    291,272.52x = 73,911,306,037.93
  5. Step 5: Solve for x
    x = 73,911,306,037.93/291,272.52
  6. Step 6: Final answer
    x = 253,753.10

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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.