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Finding the Fourth Proportional to 181,616.40, 272,424.60 and 56,957.20

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Solution

The fourth proportional to 181,616.40, 272,424.60 and 56,957.20 is: 85,435.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,616.40 : 272,424.60 = 56,957.20 : x
  2. Step 2: Convert to fraction form
    181,616.40/272,424.60 = 56,957.20/x
  3. Step 3: Cross multiply
    181,616.40x = 272,424.60 × 56,957.20
  4. Step 4: Simplify right side
    181,616.40x = 15,516,542,427.12
  5. Step 5: Solve for x
    x = 15,516,542,427.12/181,616.40
  6. Step 6: Final answer
    x = 85,435.80

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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.