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Finding the Fourth Proportional to 70,443.11, 105,674.51 and 23,061.90

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Solution

The fourth proportional to 70,443.11, 105,674.51 and 23,061.90 is: 34,596.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,443.11 : 105,674.51 = 23,061.90 : x
  2. Step 2: Convert to fraction form
    70,443.11/105,674.51 = 23,061.90/x
  3. Step 3: Cross multiply
    70,443.11x = 105,674.51 × 23,061.90
  4. Step 4: Simplify right side
    70,443.11x = 2,437,054,982.17
  5. Step 5: Solve for x
    x = 2,437,054,982.17/70,443.11
  6. Step 6: Final answer
    x = 34,596.07

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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.