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Finding the Fourth Proportional to 318,783.59, 478,063.74 and 94,084.52

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Solution

The fourth proportional to 318,783.59, 478,063.74 and 94,084.52 is: 141,093.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,783.59 : 478,063.74 = 94,084.52 : x
  2. Step 2: Convert to fraction form
    318,783.59/478,063.74 = 94,084.52/x
  3. Step 3: Cross multiply
    318,783.59x = 478,063.74 × 94,084.52
  4. Step 4: Simplify right side
    318,783.59x = 44,978,395,116.99
  5. Step 5: Solve for x
    x = 44,978,395,116.99/318,783.59
  6. Step 6: Final answer
    x = 141,093.82

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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.