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Finding the Fourth Proportional to 251,228.34, 346,710.61 and 143,795.91

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Solution

The fourth proportional to 251,228.34, 346,710.61 and 143,795.91 is: 198,447.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,228.34 : 346,710.61 = 143,795.91 : x
  2. Step 2: Convert to fraction form
    251,228.34/346,710.61 = 143,795.91/x
  3. Step 3: Cross multiply
    251,228.34x = 346,710.61 × 143,795.91
  4. Step 4: Simplify right side
    251,228.34x = 49,855,569,151.51
  5. Step 5: Solve for x
    x = 49,855,569,151.51/251,228.34
  6. Step 6: Final answer
    x = 198,447.23

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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.