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Finding the Fourth Proportional to 106,810.75, 147,399.81 and 59,064.89

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Solution

The fourth proportional to 106,810.75, 147,399.81 and 59,064.89 is: 81,510.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,810.75 : 147,399.81 = 59,064.89 : x
  2. Step 2: Convert to fraction form
    106,810.75/147,399.81 = 59,064.89/x
  3. Step 3: Cross multiply
    106,810.75x = 147,399.81 × 59,064.89
  4. Step 4: Simplify right side
    106,810.75x = 8,706,153,766.54
  5. Step 5: Solve for x
    x = 8,706,153,766.54/106,810.75
  6. Step 6: Final answer
    x = 81,510.09

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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.