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Finding the Fourth Proportional to 70,448.33, 105,688.70 and 23,064.95

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Solution

The fourth proportional to 70,448.33, 105,688.70 and 23,064.95 is: 34,602.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,448.33 : 105,688.70 = 23,064.95 : x
  2. Step 2: Convert to fraction form
    70,448.33/105,688.70 = 23,064.95/x
  3. Step 3: Cross multiply
    70,448.33x = 105,688.70 × 23,064.95
  4. Step 4: Simplify right side
    70,448.33x = 2,437,704,581.07
  5. Step 5: Solve for x
    x = 2,437,704,581.07/70,448.33
  6. Step 6: Final answer
    x = 34,602.73

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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.