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Finding the Fourth Proportional to 181,918.96, 251,030.28 and 101,343.40

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Solution

The fourth proportional to 181,918.96, 251,030.28 and 101,343.40 is: 139,843.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,918.96 : 251,030.28 = 101,343.40 : x
  2. Step 2: Convert to fraction form
    181,918.96/251,030.28 = 101,343.40/x
  3. Step 3: Cross multiply
    181,918.96x = 251,030.28 × 101,343.40
  4. Step 4: Simplify right side
    181,918.96x = 25,440,262,078.15
  5. Step 5: Solve for x
    x = 25,440,262,078.15/181,918.96
  6. Step 6: Final answer
    x = 139,843.93

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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.