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Finding the Fourth Proportional to 153,794.48, 212,200.16 and 93,363.60

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Solution

The fourth proportional to 153,794.48, 212,200.16 and 93,363.60 is: 128,819.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,794.48 : 212,200.16 = 93,363.60 : x
  2. Step 2: Convert to fraction form
    153,794.48/212,200.16 = 93,363.60/x
  3. Step 3: Cross multiply
    153,794.48x = 212,200.16 × 93,363.60
  4. Step 4: Simplify right side
    153,794.48x = 19,811,770,858.18
  5. Step 5: Solve for x
    x = 19,811,770,858.18/153,794.48
  6. Step 6: Final answer
    x = 128,819.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.