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Finding the Fourth Proportional to 181,147.67, 249,991.59 and 100,575.19

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Solution

The fourth proportional to 181,147.67, 249,991.59 and 100,575.19 is: 138,798.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,147.67 : 249,991.59 = 100,575.19 : x
  2. Step 2: Convert to fraction form
    181,147.67/249,991.59 = 100,575.19/x
  3. Step 3: Cross multiply
    181,147.67x = 249,991.59 × 100,575.19
  4. Step 4: Simplify right side
    181,147.67x = 25,142,951,662.65
  5. Step 5: Solve for x
    x = 25,142,951,662.65/181,147.67
  6. Step 6: Final answer
    x = 138,798.10

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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.