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Finding the Fourth Proportional to 124,070.76, 186,137.37 and 39,838.47

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Solution

The fourth proportional to 124,070.76, 186,137.37 and 39,838.47 is: 59,767.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,070.76 : 186,137.37 = 39,838.47 : x
  2. Step 2: Convert to fraction form
    124,070.76/186,137.37 = 39,838.47/x
  3. Step 3: Cross multiply
    124,070.76x = 186,137.37 × 39,838.47
  4. Step 4: Simplify right side
    124,070.76x = 7,415,428,030.62
  5. Step 5: Solve for x
    x = 7,415,428,030.62/124,070.76
  6. Step 6: Final answer
    x = 59,767.73

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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.