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Finding the Fourth Proportional to 152,179.72, 227,936.70 and 77,170.60

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Solution

The fourth proportional to 152,179.72, 227,936.70 and 77,170.60 is: 115,587.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,179.72 : 227,936.70 = 77,170.60 : x
  2. Step 2: Convert to fraction form
    152,179.72/227,936.70 = 77,170.60/x
  3. Step 3: Cross multiply
    152,179.72x = 227,936.70 × 77,170.60
  4. Step 4: Simplify right side
    152,179.72x = 17,590,011,901.02
  5. Step 5: Solve for x
    x = 17,590,011,901.02/152,179.72
  6. Step 6: Final answer
    x = 115,587.10

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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.