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Finding the Fourth Proportional to 124,228.71, 186,316.88 and 39,996.41

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Solution

The fourth proportional to 124,228.71, 186,316.88 and 39,996.41 is: 59,986.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,228.71 : 186,316.88 = 39,996.41 : x
  2. Step 2: Convert to fraction form
    124,228.71/186,316.88 = 39,996.41/x
  3. Step 3: Cross multiply
    124,228.71x = 186,316.88 × 39,996.41
  4. Step 4: Simplify right side
    124,228.71x = 7,452,005,190.83
  5. Step 5: Solve for x
    x = 7,452,005,190.83/124,228.71
  6. Step 6: Final answer
    x = 59,986.18

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1.5x scale

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.