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Finding the Fourth Proportional to 318,747.96, 478,010.40 and 94,048.74

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Solution

The fourth proportional to 318,747.96, 478,010.40 and 94,048.74 is: 141,040.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,747.96 : 478,010.40 = 94,048.74 : x
  2. Step 2: Convert to fraction form
    318,747.96/478,010.40 = 94,048.74/x
  3. Step 3: Cross multiply
    318,747.96x = 478,010.40 × 94,048.74
  4. Step 4: Simplify right side
    318,747.96x = 44,956,275,826.90
  5. Step 5: Solve for x
    x = 44,956,275,826.90/318,747.96
  6. Step 6: Final answer
    x = 141,040.20

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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.