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Finding the Fourth Proportional to 181,083.57, 249,883.55 and 100,511.12

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Solution

The fourth proportional to 181,083.57, 249,883.55 and 100,511.12 is: 138,698.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,083.57 : 249,883.55 = 100,511.12 : x
  2. Step 2: Convert to fraction form
    181,083.57/249,883.55 = 100,511.12/x
  3. Step 3: Cross multiply
    181,083.57x = 249,883.55 × 100,511.12
  4. Step 4: Simplify right side
    181,083.57x = 25,116,074,230.66
  5. Step 5: Solve for x
    x = 25,116,074,230.66/181,083.57
  6. Step 6: Final answer
    x = 138,698.80

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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.