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Finding the Fourth Proportional to 161,388.76, 222,700.84 and 93,392.20

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Solution

The fourth proportional to 161,388.76, 222,700.84 and 93,392.20 is: 128,872.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,388.76 : 222,700.84 = 93,392.20 : x
  2. Step 2: Convert to fraction form
    161,388.76/222,700.84 = 93,392.20/x
  3. Step 3: Cross multiply
    161,388.76x = 222,700.84 × 93,392.20
  4. Step 4: Simplify right side
    161,388.76x = 20,798,521,389.45
  5. Step 5: Solve for x
    x = 20,798,521,389.45/161,388.76
  6. Step 6: Final answer
    x = 128,872.18

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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.