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Finding the Fourth Proportional to 318,873.95, 478,362.50 and 94,256.90

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Solution

The fourth proportional to 318,873.95, 478,362.50 and 94,256.90 is: 141,400.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,873.95 : 478,362.50 = 94,256.90 : x
  2. Step 2: Convert to fraction form
    318,873.95/478,362.50 = 94,256.90/x
  3. Step 3: Cross multiply
    318,873.95x = 478,362.50 × 94,256.90
  4. Step 4: Simplify right side
    318,873.95x = 45,088,965,854.97
  5. Step 5: Solve for x
    x = 45,088,965,854.97/318,873.95
  6. Step 6: Final answer
    x = 141,400.59

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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.