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Finding the Fourth Proportional to 186,029.86, 279,045.88 and 45,787.54

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Solution

The fourth proportional to 186,029.86, 279,045.88 and 45,787.54 is: 68,681.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,029.86 : 279,045.88 = 45,787.54 : x
  2. Step 2: Convert to fraction form
    186,029.86/279,045.88 = 45,787.54/x
  3. Step 3: Cross multiply
    186,029.86x = 279,045.88 × 45,787.54
  4. Step 4: Simplify right side
    186,029.86x = 12,776,824,392.34
  5. Step 5: Solve for x
    x = 12,776,824,392.34/186,029.86
  6. Step 6: Final answer
    x = 68,681.58

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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.