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Finding the Fourth Proportional to 183,913.60, 275,870.40 and 137,257.60

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Solution

The fourth proportional to 183,913.60, 275,870.40 and 137,257.60 is: 205,886.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,913.60 : 275,870.40 = 137,257.60 : x
  2. Step 2: Convert to fraction form
    183,913.60/275,870.40 = 137,257.60/x
  3. Step 3: Cross multiply
    183,913.60x = 275,870.40 × 137,257.60
  4. Step 4: Simplify right side
    183,913.60x = 37,865,309,015.04
  5. Step 5: Solve for x
    x = 37,865,309,015.04/183,913.60
  6. Step 6: Final answer
    x = 205,886.40

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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.