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Finding the Fourth Proportional to 75,689.70, 113,534.55 and 64,025.70

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Solution

The fourth proportional to 75,689.70, 113,534.55 and 64,025.70 is: 96,038.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,689.70 : 113,534.55 = 64,025.70 : x
  2. Step 2: Convert to fraction form
    75,689.70/113,534.55 = 64,025.70/x
  3. Step 3: Cross multiply
    75,689.70x = 113,534.55 × 64,025.70
  4. Step 4: Simplify right side
    75,689.70x = 7,269,129,037.94
  5. Step 5: Solve for x
    x = 7,269,129,037.94/75,689.70
  6. Step 6: Final answer
    x = 96,038.55

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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.