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Finding the Fourth Proportional to 59,154, 81,639.68 and 33,666.56

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Solution

The fourth proportional to 59,154, 81,639.68 and 33,666.56 is: 46,463.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,154 : 81,639.68 = 33,666.56 : x
  2. Step 2: Convert to fraction form
    59,154/81,639.68 = 33,666.56/x
  3. Step 3: Cross multiply
    59,154x = 81,639.68 × 33,666.56
  4. Step 4: Simplify right side
    59,154x = 2,748,526,812.67
  5. Step 5: Solve for x
    x = 2,748,526,812.67/59,154
  6. Step 6: Final answer
    x = 46,463.92

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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.