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Finding the Fourth Proportional to 109,861.70, 164,865.45 and 62,476.70

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Solution

The fourth proportional to 109,861.70, 164,865.45 and 62,476.70 is: 93,756.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,861.70 : 164,865.45 = 62,476.70 : x
  2. Step 2: Convert to fraction form
    109,861.70/164,865.45 = 62,476.70/x
  3. Step 3: Cross multiply
    109,861.70x = 164,865.45 × 62,476.70
  4. Step 4: Simplify right side
    109,861.70x = 10,300,249,260.02
  5. Step 5: Solve for x
    x = 10,300,249,260.02/109,861.70
  6. Step 6: Final answer
    x = 93,756.51

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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.