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Finding the Fourth Proportional to 151,661.56, 227,492.30 and 81,444.28

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Solution

The fourth proportional to 151,661.56, 227,492.30 and 81,444.28 is: 122,166.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,661.56 : 227,492.30 = 81,444.28 : x
  2. Step 2: Convert to fraction form
    151,661.56/227,492.30 = 81,444.28/x
  3. Step 3: Cross multiply
    151,661.56x = 227,492.30 × 81,444.28
  4. Step 4: Simplify right side
    151,661.56x = 18,527,946,579.04
  5. Step 5: Solve for x
    x = 18,527,946,579.04/151,661.56
  6. Step 6: Final answer
    x = 122,166.40

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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.