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Finding the Fourth Proportional to 188,681.88, 260,500.50 and 117,137.82

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Solution

The fourth proportional to 188,681.88, 260,500.50 and 117,137.82 is: 161,724.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,681.88 : 260,500.50 = 117,137.82 : x
  2. Step 2: Convert to fraction form
    188,681.88/260,500.50 = 117,137.82/x
  3. Step 3: Cross multiply
    188,681.88x = 260,500.50 × 117,137.82
  4. Step 4: Simplify right side
    188,681.88x = 30,514,460,678.91
  5. Step 5: Solve for x
    x = 30,514,460,678.91/188,681.88
  6. Step 6: Final answer
    x = 161,724.38

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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.