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Finding the Fourth Proportional to 99,230.40, 148,845.36 and 25,358.40

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Solution

The fourth proportional to 99,230.40, 148,845.36 and 25,358.40 is: 38,037.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,230.40 : 148,845.36 = 25,358.40 : x
  2. Step 2: Convert to fraction form
    99,230.40/148,845.36 = 25,358.40/x
  3. Step 3: Cross multiply
    99,230.40x = 148,845.36 × 25,358.40
  4. Step 4: Simplify right side
    99,230.40x = 3,774,480,177.02
  5. Step 5: Solve for x
    x = 3,774,480,177.02/99,230.40
  6. Step 6: Final answer
    x = 38,037.54

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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.