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Finding the Fourth Proportional to 124,859.31, 186,809.73 and 71,576.84

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Solution

The fourth proportional to 124,859.31, 186,809.73 and 71,576.84 is: 107,090.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,859.31 : 186,809.73 = 71,576.84 : x
  2. Step 2: Convert to fraction form
    124,859.31/186,809.73 = 71,576.84/x
  3. Step 3: Cross multiply
    124,859.31x = 186,809.73 × 71,576.84
  4. Step 4: Simplify right side
    124,859.31x = 13,371,249,220.60
  5. Step 5: Solve for x
    x = 13,371,249,220.60/124,859.31
  6. Step 6: Final answer
    x = 107,090.53

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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.