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Finding the Fourth Proportional to 85,357.95, 117,793.99 and 47,117.52

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Solution

The fourth proportional to 85,357.95, 117,793.99 and 47,117.52 is: 65,022.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,357.95 : 117,793.99 = 47,117.52 : x
  2. Step 2: Convert to fraction form
    85,357.95/117,793.99 = 47,117.52/x
  3. Step 3: Cross multiply
    85,357.95x = 117,793.99 × 47,117.52
  4. Step 4: Simplify right side
    85,357.95x = 5,550,161,091.98
  5. Step 5: Solve for x
    x = 5,550,161,091.98/85,357.95
  6. Step 6: Final answer
    x = 65,022.19

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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.