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Finding the Fourth Proportional to 387,754.83, 535,178.45 and 251,597.67

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Solution

The fourth proportional to 387,754.83, 535,178.45 and 251,597.67 is: 347,254.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,754.83 : 535,178.45 = 251,597.67 : x
  2. Step 2: Convert to fraction form
    387,754.83/535,178.45 = 251,597.67/x
  3. Step 3: Cross multiply
    387,754.83x = 535,178.45 × 251,597.67
  4. Step 4: Simplify right side
    387,754.83x = 134,649,651,683.21
  5. Step 5: Solve for x
    x = 134,649,651,683.21/387,754.83
  6. Step 6: Final answer
    x = 347,254.61

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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.