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Finding the Fourth Proportional to 107,715.69, 148,653.54 and 59,967.99

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Solution

The fourth proportional to 107,715.69, 148,653.54 and 59,967.99 is: 82,759.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,715.69 : 148,653.54 = 59,967.99 : x
  2. Step 2: Convert to fraction form
    107,715.69/148,653.54 = 59,967.99/x
  3. Step 3: Cross multiply
    107,715.69x = 148,653.54 × 59,967.99
  4. Step 4: Simplify right side
    107,715.69x = 8,914,454,000.18
  5. Step 5: Solve for x
    x = 8,914,454,000.18/107,715.69
  6. Step 6: Final answer
    x = 82,759.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.