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Finding the Fourth Proportional to 124,337, 186,284.37 and 71,637.59

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Solution

The fourth proportional to 124,337, 186,284.37 and 71,637.59 is: 107,328.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,337 : 186,284.37 = 71,637.59 : x
  2. Step 2: Convert to fraction form
    124,337/186,284.37 = 71,637.59/x
  3. Step 3: Cross multiply
    124,337x = 186,284.37 × 71,637.59
  4. Step 4: Simplify right side
    124,337x = 13,344,963,321.47
  5. Step 5: Solve for x
    x = 13,344,963,321.47/124,337
  6. Step 6: Final answer
    x = 107,328.98

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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.