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Finding the Fourth Proportional to 251,358.22, 346,871.90 and 187,114.74

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Solution

The fourth proportional to 251,358.22, 346,871.90 and 187,114.74 is: 258,216.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,358.22 : 346,871.90 = 187,114.74 : x
  2. Step 2: Convert to fraction form
    251,358.22/346,871.90 = 187,114.74/x
  3. Step 3: Cross multiply
    251,358.22x = 346,871.90 × 187,114.74
  4. Step 4: Simplify right side
    251,358.22x = 64,904,845,381.81
  5. Step 5: Solve for x
    x = 64,904,845,381.81/251,358.22
  6. Step 6: Final answer
    x = 258,216.52

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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.