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Finding the Fourth Proportional to 375,155.52, 562,551.84 and 138,609.60

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Solution

The fourth proportional to 375,155.52, 562,551.84 and 138,609.60 is: 207,847.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,155.52 : 562,551.84 = 138,609.60 : x
  2. Step 2: Convert to fraction form
    375,155.52/562,551.84 = 138,609.60/x
  3. Step 3: Cross multiply
    375,155.52x = 562,551.84 × 138,609.60
  4. Step 4: Simplify right side
    375,155.52x = 77,975,085,521.66
  5. Step 5: Solve for x
    x = 77,975,085,521.66/375,155.52
  6. Step 6: Final answer
    x = 207,847.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.