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Finding the Fourth Proportional to 318,778.67, 478,055.45 and 94,079.00

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Solution

The fourth proportional to 318,778.67, 478,055.45 and 94,079.00 is: 141,085.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,778.67 : 478,055.45 = 94,079.00 : x
  2. Step 2: Convert to fraction form
    318,778.67/478,055.45 = 94,079.00/x
  3. Step 3: Cross multiply
    318,778.67x = 478,055.45 × 94,079.00
  4. Step 4: Simplify right side
    318,778.67x = 44,974,980,110.89
  5. Step 5: Solve for x
    x = 44,974,980,110.89/318,778.67
  6. Step 6: Final answer
    x = 141,085.29

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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.