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Finding the Fourth Proportional to 70,123.68, 105,186.45 and 23,376.57

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Solution

The fourth proportional to 70,123.68, 105,186.45 and 23,376.57 is: 35,065.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,123.68 : 105,186.45 = 23,376.57 : x
  2. Step 2: Convert to fraction form
    70,123.68/105,186.45 = 23,376.57/x
  3. Step 3: Cross multiply
    70,123.68x = 105,186.45 × 23,376.57
  4. Step 4: Simplify right side
    70,123.68x = 2,458,898,411.48
  5. Step 5: Solve for x
    x = 2,458,898,411.48/70,123.68
  6. Step 6: Final answer
    x = 35,065.17

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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.