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Finding the Fourth Proportional to 181,008.67, 249,840.43 and 112,984.69

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Solution

The fourth proportional to 181,008.67, 249,840.43 and 112,984.69 is: 155,949.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,008.67 : 249,840.43 = 112,984.69 : x
  2. Step 2: Convert to fraction form
    181,008.67/249,840.43 = 112,984.69/x
  3. Step 3: Cross multiply
    181,008.67x = 249,840.43 × 112,984.69
  4. Step 4: Simplify right side
    181,008.67x = 28,228,142,625.95
  5. Step 5: Solve for x
    x = 28,228,142,625.95/181,008.67
  6. Step 6: Final answer
    x = 155,949.12

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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.