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Finding the Fourth Proportional to 70,901.63, 106,252.19 and 39,325.61

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Solution

The fourth proportional to 70,901.63, 106,252.19 and 39,325.61 is: 58,932.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,901.63 : 106,252.19 = 39,325.61 : x
  2. Step 2: Convert to fraction form
    70,901.63/106,252.19 = 39,325.61/x
  3. Step 3: Cross multiply
    70,901.63x = 106,252.19 × 39,325.61
  4. Step 4: Simplify right side
    70,901.63x = 4,178,431,457.70
  5. Step 5: Solve for x
    x = 4,178,431,457.70/70,901.63
  6. Step 6: Final answer
    x = 58,932.80

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1.5x scale

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.