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Finding the Fourth Proportional to 346,649.73, 520,029.96 and 118,919.48

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Solution

The fourth proportional to 346,649.73, 520,029.96 and 118,919.48 is: 178,398.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,649.73 : 520,029.96 = 118,919.48 : x
  2. Step 2: Convert to fraction form
    346,649.73/520,029.96 = 118,919.48/x
  3. Step 3: Cross multiply
    346,649.73x = 520,029.96 × 118,919.48
  4. Step 4: Simplify right side
    346,649.73x = 61,841,689,827.47
  5. Step 5: Solve for x
    x = 61,841,689,827.47/346,649.73
  6. Step 6: Final answer
    x = 178,398.21

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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.