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Finding the Fourth Proportional to 181,970.28, 251,116.42 and 101,401.20

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Solution

The fourth proportional to 181,970.28, 251,116.42 and 101,401.20 is: 139,932.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,970.28 : 251,116.42 = 101,401.20 : x
  2. Step 2: Convert to fraction form
    181,970.28/251,116.42 = 101,401.20/x
  3. Step 3: Cross multiply
    181,970.28x = 251,116.42 × 101,401.20
  4. Step 4: Simplify right side
    181,970.28x = 25,463,506,327.70
  5. Step 5: Solve for x
    x = 25,463,506,327.70/181,970.28
  6. Step 6: Final answer
    x = 139,932.23

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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.