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Finding the Fourth Proportional to 375,064.80, 562,536.56 and 138,518.88

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Solution

The fourth proportional to 375,064.80, 562,536.56 and 138,518.88 is: 207,755.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,064.80 : 562,536.56 = 138,518.88 : x
  2. Step 2: Convert to fraction form
    375,064.80/562,536.56 = 138,518.88/x
  3. Step 3: Cross multiply
    375,064.80x = 562,536.56 × 138,518.88
  4. Step 4: Simplify right side
    375,064.80x = 77,921,934,250.25
  5. Step 5: Solve for x
    x = 77,921,934,250.25/375,064.80
  6. Step 6: Final answer
    x = 207,755.92

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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.