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Finding the Fourth Proportional to 85,503.33, 117,994.31 and 47,777.58

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Solution

The fourth proportional to 85,503.33, 117,994.31 and 47,777.58 is: 65,932.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,503.33 : 117,994.31 = 47,777.58 : x
  2. Step 2: Convert to fraction form
    85,503.33/117,994.31 = 47,777.58/x
  3. Step 3: Cross multiply
    85,503.33x = 117,994.31 × 47,777.58
  4. Step 4: Simplify right side
    85,503.33x = 5,637,482,346.68
  5. Step 5: Solve for x
    x = 5,637,482,346.68/85,503.33
  6. Step 6: Final answer
    x = 65,932.90

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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.