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Finding the Fourth Proportional to 252,208.60, 378,312.90 and 94,428.70

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Solution

The fourth proportional to 252,208.60, 378,312.90 and 94,428.70 is: 141,643.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,208.60 : 378,312.90 = 94,428.70 : x
  2. Step 2: Convert to fraction form
    252,208.60/378,312.90 = 94,428.70/x
  3. Step 3: Cross multiply
    252,208.60x = 378,312.90 × 94,428.70
  4. Step 4: Simplify right side
    252,208.60x = 35,723,595,340.23
  5. Step 5: Solve for x
    x = 35,723,595,340.23/252,208.60
  6. Step 6: Final answer
    x = 141,643.05

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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.