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Finding the Fourth Proportional to 106,912.60, 160,368.90 and 59,673.40

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Solution

The fourth proportional to 106,912.60, 160,368.90 and 59,673.40 is: 89,510.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,912.60 : 160,368.90 = 59,673.40 : x
  2. Step 2: Convert to fraction form
    106,912.60/160,368.90 = 59,673.40/x
  3. Step 3: Cross multiply
    106,912.60x = 160,368.90 × 59,673.40
  4. Step 4: Simplify right side
    106,912.60x = 9,569,757,517.26
  5. Step 5: Solve for x
    x = 9,569,757,517.26/106,912.60
  6. Step 6: Final answer
    x = 89,510.10

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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.