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Finding the Fourth Proportional to 181,857.35, 250,962.98 and 105,420.79

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Solution

The fourth proportional to 181,857.35, 250,962.98 and 105,420.79 is: 145,480.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,857.35 : 250,962.98 = 105,420.79 : x
  2. Step 2: Convert to fraction form
    181,857.35/250,962.98 = 105,420.79/x
  3. Step 3: Cross multiply
    181,857.35x = 250,962.98 × 105,420.79
  4. Step 4: Simplify right side
    181,857.35x = 26,456,716,288.44
  5. Step 5: Solve for x
    x = 26,456,716,288.44/181,857.35
  6. Step 6: Final answer
    x = 145,480.60

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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.