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Finding the Fourth Proportional to 70,864.50, 106,301.61 and 23,479.50

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Solution

The fourth proportional to 70,864.50, 106,301.61 and 23,479.50 is: 35,220.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,864.50 : 106,301.61 = 23,479.50 : x
  2. Step 2: Convert to fraction form
    70,864.50/106,301.61 = 23,479.50/x
  3. Step 3: Cross multiply
    70,864.50x = 106,301.61 × 23,479.50
  4. Step 4: Simplify right side
    70,864.50x = 2,495,908,652.00
  5. Step 5: Solve for x
    x = 2,495,908,652.00/70,864.50
  6. Step 6: Final answer
    x = 35,220.86

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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.