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Finding the Fourth Proportional to 141,897.71, 212,840.40 and 35,279.45

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Solution

The fourth proportional to 141,897.71, 212,840.40 and 35,279.45 is: 52,917.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,897.71 : 212,840.40 = 35,279.45 : x
  2. Step 2: Convert to fraction form
    141,897.71/212,840.40 = 35,279.45/x
  3. Step 3: Cross multiply
    141,897.71x = 212,840.40 × 35,279.45
  4. Step 4: Simplify right side
    141,897.71x = 7,508,892,249.78
  5. Step 5: Solve for x
    x = 7,508,892,249.78/141,897.71
  6. Step 6: Final answer
    x = 52,917.64

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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.