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Finding the Fourth Proportional to 135,463.33, 186,931.15 and 75,030.39

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Solution

The fourth proportional to 135,463.33, 186,931.15 and 75,030.39 is: 103,537.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,463.33 : 186,931.15 = 75,030.39 : x
  2. Step 2: Convert to fraction form
    135,463.33/186,931.15 = 75,030.39/x
  3. Step 3: Cross multiply
    135,463.33x = 186,931.15 × 75,030.39
  4. Step 4: Simplify right side
    135,463.33x = 14,025,517,087.65
  5. Step 5: Solve for x
    x = 14,025,517,087.65/135,463.33
  6. Step 6: Final answer
    x = 103,537.37

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1.5x scale

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.