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Finding the Fourth Proportional to 92,730.58, 139,092.02 and 42,794.08

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Solution

The fourth proportional to 92,730.58, 139,092.02 and 42,794.08 is: 64,189.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,730.58 : 139,092.02 = 42,794.08 : x
  2. Step 2: Convert to fraction form
    92,730.58/139,092.02 = 42,794.08/x
  3. Step 3: Cross multiply
    92,730.58x = 139,092.02 × 42,794.08
  4. Step 4: Simplify right side
    92,730.58x = 5,952,315,031.24
  5. Step 5: Solve for x
    x = 5,952,315,031.24/92,730.58
  6. Step 6: Final answer
    x = 64,189.34

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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.