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Finding the Fourth Proportional to 70,503.30, 97,261.02 and 42,203.52

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Solution

The fourth proportional to 70,503.30, 97,261.02 and 42,203.52 is: 58,220.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,503.30 : 97,261.02 = 42,203.52 : x
  2. Step 2: Convert to fraction form
    70,503.30/97,261.02 = 42,203.52/x
  3. Step 3: Cross multiply
    70,503.30x = 97,261.02 × 42,203.52
  4. Step 4: Simplify right side
    70,503.30x = 4,104,757,402.79
  5. Step 5: Solve for x
    x = 4,104,757,402.79/70,503.30
  6. Step 6: Final answer
    x = 58,220.78

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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.