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Finding the Fourth Proportional to 625,004.78, 937,507.62 and 151,690.58

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Solution

The fourth proportional to 625,004.78, 937,507.62 and 151,690.58 is: 227,535.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,004.78 : 937,507.62 = 151,690.58 : x
  2. Step 2: Convert to fraction form
    625,004.78/937,507.62 = 151,690.58/x
  3. Step 3: Cross multiply
    625,004.78x = 937,507.62 × 151,690.58
  4. Step 4: Simplify right side
    625,004.78x = 142,211,074,632.22
  5. Step 5: Solve for x
    x = 142,211,074,632.22/625,004.78
  6. Step 6: Final answer
    x = 227,535.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.