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Finding the Fourth Proportional to 73,592.80, 110,437.80 and 42,002.80

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Solution

The fourth proportional to 73,592.80, 110,437.80 and 42,002.80 is: 63,031.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,592.80 : 110,437.80 = 42,002.80 : x
  2. Step 2: Convert to fraction form
    73,592.80/110,437.80 = 42,002.80/x
  3. Step 3: Cross multiply
    73,592.80x = 110,437.80 × 42,002.80
  4. Step 4: Simplify right side
    73,592.80x = 4,638,696,825.84
  5. Step 5: Solve for x
    x = 4,638,696,825.84/73,592.80
  6. Step 6: Final answer
    x = 63,031.94

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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.