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Finding the Fourth Proportional to 70,302.84, 97,008.30 and 42,002.52

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Solution

The fourth proportional to 70,302.84, 97,008.30 and 42,002.52 is: 57,957.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,302.84 : 97,008.30 = 42,002.52 : x
  2. Step 2: Convert to fraction form
    70,302.84/97,008.30 = 42,002.52/x
  3. Step 3: Cross multiply
    70,302.84x = 97,008.30 × 42,002.52
  4. Step 4: Simplify right side
    70,302.84x = 4,074,593,060.92
  5. Step 5: Solve for x
    x = 4,074,593,060.92/70,302.84
  6. Step 6: Final answer
    x = 57,957.73

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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.