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Finding the Fourth Proportional to 75,117.30, 103,661.87 and 41,583.30

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Solution

The fourth proportional to 75,117.30, 103,661.87 and 41,583.30 is: 57,384.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,117.30 : 103,661.87 = 41,583.30 : x
  2. Step 2: Convert to fraction form
    75,117.30/103,661.87 = 41,583.30/x
  3. Step 3: Cross multiply
    75,117.30x = 103,661.87 × 41,583.30
  4. Step 4: Simplify right side
    75,117.30x = 4,310,602,638.77
  5. Step 5: Solve for x
    x = 4,310,602,638.77/75,117.30
  6. Step 6: Final answer
    x = 57,384.95

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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.