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Finding the Fourth Proportional to 247,312.25, 370,719.12 and 97,494.56

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Solution

The fourth proportional to 247,312.25, 370,719.12 and 97,494.56 is: 146,143.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,312.25 : 370,719.12 = 97,494.56 : x
  2. Step 2: Convert to fraction form
    247,312.25/370,719.12 = 97,494.56/x
  3. Step 3: Cross multiply
    247,312.25x = 370,719.12 × 97,494.56
  4. Step 4: Simplify right side
    247,312.25x = 36,143,097,487.99
  5. Step 5: Solve for x
    x = 36,143,097,487.99/247,312.25
  6. Step 6: Final answer
    x = 146,143.58

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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.