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Finding the Fourth Proportional to 181,688.88, 272,533.41 and 81,732.32

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Solution

The fourth proportional to 181,688.88, 272,533.41 and 81,732.32 is: 122,598.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,688.88 : 272,533.41 = 81,732.32 : x
  2. Step 2: Convert to fraction form
    181,688.88/272,533.41 = 81,732.32/x
  3. Step 3: Cross multiply
    181,688.88x = 272,533.41 × 81,732.32
  4. Step 4: Simplify right side
    181,688.88x = 22,274,787,536.14
  5. Step 5: Solve for x
    x = 22,274,787,536.14/181,688.88
  6. Step 6: Final answer
    x = 122,598.52

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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.