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Finding the Fourth Proportional to 75,866.70, 113,800.05 and 46,342.20

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Solution

The fourth proportional to 75,866.70, 113,800.05 and 46,342.20 is: 69,513.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,866.70 : 113,800.05 = 46,342.20 : x
  2. Step 2: Convert to fraction form
    75,866.70/113,800.05 = 46,342.20/x
  3. Step 3: Cross multiply
    75,866.70x = 113,800.05 × 46,342.20
  4. Step 4: Simplify right side
    75,866.70x = 5,273,744,677.11
  5. Step 5: Solve for x
    x = 5,273,744,677.11/75,866.70
  6. Step 6: Final answer
    x = 69,513.30

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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.