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Finding the Fourth Proportional to 345,897.44, 518,818.46 and 153,831.33

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Solution

The fourth proportional to 345,897.44, 518,818.46 and 153,831.33 is: 230,734.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,897.44 : 518,818.46 = 153,831.33 : x
  2. Step 2: Convert to fraction form
    345,897.44/518,818.46 = 153,831.33/x
  3. Step 3: Cross multiply
    345,897.44x = 518,818.46 × 153,831.33
  4. Step 4: Simplify right side
    345,897.44x = 79,810,532,961.20
  5. Step 5: Solve for x
    x = 79,810,532,961.20/345,897.44
  6. Step 6: Final answer
    x = 230,734.68

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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.