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Finding the Fourth Proportional to 254,698.72, 351,463.64 and 147,275.72

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Solution

The fourth proportional to 254,698.72, 351,463.64 and 147,275.72 is: 203,228.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,698.72 : 351,463.64 = 147,275.72 : x
  2. Step 2: Convert to fraction form
    254,698.72/351,463.64 = 147,275.72/x
  3. Step 3: Cross multiply
    254,698.72x = 351,463.64 × 147,275.72
  4. Step 4: Simplify right side
    254,698.72x = 51,762,060,634.82
  5. Step 5: Solve for x
    x = 51,762,060,634.82/254,698.72
  6. Step 6: Final answer
    x = 203,228.59

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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.