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Finding the Fourth Proportional to 92,365.70, 138,563.07 and 30,021.62

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Solution

The fourth proportional to 92,365.70, 138,563.07 and 30,021.62 is: 45,037.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,365.70 : 138,563.07 = 30,021.62 : x
  2. Step 2: Convert to fraction form
    92,365.70/138,563.07 = 30,021.62/x
  3. Step 3: Cross multiply
    92,365.70x = 138,563.07 × 30,021.62
  4. Step 4: Simplify right side
    92,365.70x = 4,159,887,833.57
  5. Step 5: Solve for x
    x = 4,159,887,833.57/92,365.70
  6. Step 6: Final answer
    x = 45,037.15

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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.