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Finding the Fourth Proportional to 73,115.49, 100,893.24 and 42,897.63

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Solution

The fourth proportional to 73,115.49, 100,893.24 and 42,897.63 is: 59,195.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,115.49 : 100,893.24 = 42,897.63 : x
  2. Step 2: Convert to fraction form
    73,115.49/100,893.24 = 42,897.63/x
  3. Step 3: Cross multiply
    73,115.49x = 100,893.24 × 42,897.63
  4. Step 4: Simplify right side
    73,115.49x = 4,328,080,879.02
  5. Step 5: Solve for x
    x = 4,328,080,879.02/73,115.49
  6. Step 6: Final answer
    x = 59,195.13

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1.5x scale

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.