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Finding the Fourth Proportional to 99,200.70, 148,801.05 and 25,328.70

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Solution

The fourth proportional to 99,200.70, 148,801.05 and 25,328.70 is: 37,993.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,200.70 : 148,801.05 = 25,328.70 : x
  2. Step 2: Convert to fraction form
    99,200.70/148,801.05 = 25,328.70/x
  3. Step 3: Cross multiply
    99,200.70x = 148,801.05 × 25,328.70
  4. Step 4: Simplify right side
    99,200.70x = 3,768,937,155.14
  5. Step 5: Solve for x
    x = 3,768,937,155.14/99,200.70
  6. Step 6: Final answer
    x = 37,993.05

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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.