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Finding the Fourth Proportional to 104,058.63, 143,601.92 and 56,312.97

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Solution

The fourth proportional to 104,058.63, 143,601.92 and 56,312.97 is: 77,712.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,058.63 : 143,601.92 = 56,312.97 : x
  2. Step 2: Convert to fraction form
    104,058.63/143,601.92 = 56,312.97/x
  3. Step 3: Cross multiply
    104,058.63x = 143,601.92 × 56,312.97
  4. Step 4: Simplify right side
    104,058.63x = 8,086,650,753.68
  5. Step 5: Solve for x
    x = 8,086,650,753.68/104,058.63
  6. Step 6: Final answer
    x = 77,712.45

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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.