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Finding the Fourth Proportional to 106,560.81, 159,828.93 and 88,903.89

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Solution

The fourth proportional to 106,560.81, 159,828.93 and 88,903.89 is: 133,345.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,560.81 : 159,828.93 = 88,903.89 : x
  2. Step 2: Convert to fraction form
    106,560.81/159,828.93 = 88,903.89/x
  3. Step 3: Cross multiply
    106,560.81x = 159,828.93 × 88,903.89
  4. Step 4: Simplify right side
    106,560.81x = 14,209,413,611.54
  5. Step 5: Solve for x
    x = 14,209,413,611.54/106,560.81
  6. Step 6: Final answer
    x = 133,345.59

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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.