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Finding the Fourth Proportional to 114,038.77, 171,058.62 and 39,180.50

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Solution

The fourth proportional to 114,038.77, 171,058.62 and 39,180.50 is: 58,770.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,038.77 : 171,058.62 = 39,180.50 : x
  2. Step 2: Convert to fraction form
    114,038.77/171,058.62 = 39,180.50/x
  3. Step 3: Cross multiply
    114,038.77x = 171,058.62 × 39,180.50
  4. Step 4: Simplify right side
    114,038.77x = 6,702,162,260.91
  5. Step 5: Solve for x
    x = 6,702,162,260.91/114,038.77
  6. Step 6: Final answer
    x = 58,770.91

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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.