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Finding the Fourth Proportional to 181,012.59, 249,785.37 and 100,435.01

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Solution

The fourth proportional to 181,012.59, 249,785.37 and 100,435.01 is: 138,593.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,012.59 : 249,785.37 = 100,435.01 : x
  2. Step 2: Convert to fraction form
    181,012.59/249,785.37 = 100,435.01/x
  3. Step 3: Cross multiply
    181,012.59x = 249,785.37 × 100,435.01
  4. Step 4: Simplify right side
    181,012.59x = 25,087,194,884.88
  5. Step 5: Solve for x
    x = 25,087,194,884.88/181,012.59
  6. Step 6: Final answer
    x = 138,593.65

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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.