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Finding the Fourth Proportional to 346,606.75, 519,910.13 and 124,990.75

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Solution

The fourth proportional to 346,606.75, 519,910.13 and 124,990.75 is: 187,486.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,606.75 : 519,910.13 = 124,990.75 : x
  2. Step 2: Convert to fraction form
    346,606.75/519,910.13 = 124,990.75/x
  3. Step 3: Cross multiply
    346,606.75x = 519,910.13 × 124,990.75
  4. Step 4: Simplify right side
    346,606.75x = 64,983,956,456.34
  5. Step 5: Solve for x
    x = 64,983,956,456.34/346,606.75
  6. Step 6: Final answer
    x = 187,486.13

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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.