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Finding the Fourth Proportional to 318,586.18, 477,889.62 and 93,927.78

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Solution

The fourth proportional to 318,586.18, 477,889.62 and 93,927.78 is: 140,894.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,586.18 : 477,889.62 = 93,927.78 : x
  2. Step 2: Convert to fraction form
    318,586.18/477,889.62 = 93,927.78/x
  3. Step 3: Cross multiply
    318,586.18x = 477,889.62 × 93,927.78
  4. Step 4: Simplify right side
    318,586.18x = 44,887,111,091.64
  5. Step 5: Solve for x
    x = 44,887,111,091.64/318,586.18
  6. Step 6: Final answer
    x = 140,894.72

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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.