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Finding the Fourth Proportional to 101,336.66, 139,858.49 and 58,315.26

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Solution

The fourth proportional to 101,336.66, 139,858.49 and 58,315.26 is: 80,483.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,336.66 : 139,858.49 = 58,315.26 : x
  2. Step 2: Convert to fraction form
    101,336.66/139,858.49 = 58,315.26/x
  3. Step 3: Cross multiply
    101,336.66x = 139,858.49 × 58,315.26
  4. Step 4: Simplify right side
    101,336.66x = 8,155,884,549.79
  5. Step 5: Solve for x
    x = 8,155,884,549.79/101,336.66
  6. Step 6: Final answer
    x = 80,483.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.