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Finding the Fourth Proportional to 85,549.50, 118,058.31 and 52,015.50

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Solution

The fourth proportional to 85,549.50, 118,058.31 and 52,015.50 is: 71,781.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,549.50 : 118,058.31 = 52,015.50 : x
  2. Step 2: Convert to fraction form
    85,549.50/118,058.31 = 52,015.50/x
  3. Step 3: Cross multiply
    85,549.50x = 118,058.31 × 52,015.50
  4. Step 4: Simplify right side
    85,549.50x = 6,140,862,023.81
  5. Step 5: Solve for x
    x = 6,140,862,023.81/85,549.50
  6. Step 6: Final answer
    x = 71,781.39

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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.