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Finding the Fourth Proportional to 374,851.48, 562,188.90 and 138,065.56

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Solution

The fourth proportional to 374,851.48, 562,188.90 and 138,065.56 is: 207,065.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,851.48 : 562,188.90 = 138,065.56 : x
  2. Step 2: Convert to fraction form
    374,851.48/562,188.90 = 138,065.56/x
  3. Step 3: Cross multiply
    374,851.48x = 562,188.90 × 138,065.56
  4. Step 4: Simplify right side
    374,851.48x = 77,618,925,304.28
  5. Step 5: Solve for x
    x = 77,618,925,304.28/374,851.48
  6. Step 6: Final answer
    x = 207,065.81

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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.