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Finding the Fourth Proportional to 88,449.70, 132,328.95 and 57,345.70

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Solution

The fourth proportional to 88,449.70, 132,328.95 and 57,345.70 is: 85,794.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,449.70 : 132,328.95 = 57,345.70 : x
  2. Step 2: Convert to fraction form
    88,449.70/132,328.95 = 57,345.70/x
  3. Step 3: Cross multiply
    88,449.70x = 132,328.95 × 57,345.70
  4. Step 4: Simplify right side
    88,449.70x = 7,588,496,268.02
  5. Step 5: Solve for x
    x = 7,588,496,268.02/88,449.70
  6. Step 6: Final answer
    x = 85,794.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.