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Finding the Fourth Proportional to 103,805.54, 143,251.64 and 56,058.89

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Solution

The fourth proportional to 103,805.54, 143,251.64 and 56,058.89 is: 77,361.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,805.54 : 143,251.64 = 56,058.89 : x
  2. Step 2: Convert to fraction form
    103,805.54/143,251.64 = 56,058.89/x
  3. Step 3: Cross multiply
    103,805.54x = 143,251.64 × 56,058.89
  4. Step 4: Simplify right side
    103,805.54x = 8,030,527,352.97
  5. Step 5: Solve for x
    x = 8,030,527,352.97/103,805.54
  6. Step 6: Final answer
    x = 77,361.26

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1.5x scale

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.