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Finding the Fourth Proportional to 60,459, 90,690.53 and 27,179.17

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Solution

The fourth proportional to 60,459, 90,690.53 and 27,179.17 is: 40,769.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,459 : 90,690.53 = 27,179.17 : x
  2. Step 2: Convert to fraction form
    60,459/90,690.53 = 27,179.17/x
  3. Step 3: Cross multiply
    60,459x = 90,690.53 × 27,179.17
  4. Step 4: Simplify right side
    60,459x = 2,464,893,332.26
  5. Step 5: Solve for x
    x = 2,464,893,332.26/60,459
  6. Step 6: Final answer
    x = 40,769.67

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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.