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Finding the Fourth Proportional to 614,079.84, 921,259.98 and 187,676.36

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Solution

The fourth proportional to 614,079.84, 921,259.98 and 187,676.36 is: 281,557.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,079.84 : 921,259.98 = 187,676.36 : x
  2. Step 2: Convert to fraction form
    614,079.84/921,259.98 = 187,676.36/x
  3. Step 3: Cross multiply
    614,079.84x = 921,259.98 × 187,676.36
  4. Step 4: Simplify right side
    614,079.84x = 172,898,718,508.50
  5. Step 5: Solve for x
    x = 172,898,718,508.50/614,079.84
  6. Step 6: Final answer
    x = 281,557.39

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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.