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Finding the Fourth Proportional to 318,672.07, 478,021.29 and 94,032.50

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Solution

The fourth proportional to 318,672.07, 478,021.29 and 94,032.50 is: 141,052.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,672.07 : 478,021.29 = 94,032.50 : x
  2. Step 2: Convert to fraction form
    318,672.07/478,021.29 = 94,032.50/x
  3. Step 3: Cross multiply
    318,672.07x = 478,021.29 × 94,032.50
  4. Step 4: Simplify right side
    318,672.07x = 44,949,536,951.93
  5. Step 5: Solve for x
    x = 44,949,536,951.93/318,672.07
  6. Step 6: Final answer
    x = 141,052.64

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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.