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Finding the Fourth Proportional to 99,058.77, 148,593.02 and 39,886.45

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Solution

The fourth proportional to 99,058.77, 148,593.02 and 39,886.45 is: 59,831.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,058.77 : 148,593.02 = 39,886.45 : x
  2. Step 2: Convert to fraction form
    99,058.77/148,593.02 = 39,886.45/x
  3. Step 3: Cross multiply
    99,058.77x = 148,593.02 × 39,886.45
  4. Step 4: Simplify right side
    99,058.77x = 5,926,847,491.66
  5. Step 5: Solve for x
    x = 5,926,847,491.66/99,058.77
  6. Step 6: Final answer
    x = 59,831.63

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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.