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Finding the Fourth Proportional to 70,883.36, 97,798.74 and 42,179.03

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Solution

The fourth proportional to 70,883.36, 97,798.74 and 42,179.03 is: 58,194.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,883.36 : 97,798.74 = 42,179.03 : x
  2. Step 2: Convert to fraction form
    70,883.36/97,798.74 = 42,179.03/x
  3. Step 3: Cross multiply
    70,883.36x = 97,798.74 × 42,179.03
  4. Step 4: Simplify right side
    70,883.36x = 4,125,055,988.42
  5. Step 5: Solve for x
    x = 4,125,055,988.42/70,883.36
  6. Step 6: Final answer
    x = 58,194.98

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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.