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Finding the Fourth Proportional to 103,665.52, 143,058.40 and 58,953.52

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Solution

The fourth proportional to 103,665.52, 143,058.40 and 58,953.52 is: 81,355.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,665.52 : 143,058.40 = 58,953.52 : x
  2. Step 2: Convert to fraction form
    103,665.52/143,058.40 = 58,953.52/x
  3. Step 3: Cross multiply
    103,665.52x = 143,058.40 × 58,953.52
  4. Step 4: Simplify right side
    103,665.52x = 8,433,796,245.57
  5. Step 5: Solve for x
    x = 8,433,796,245.57/103,665.52
  6. Step 6: Final answer
    x = 81,355.85

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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.