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Finding the Fourth Proportional to 73,595.80, 110,442.30 and 42,005.80

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Solution

The fourth proportional to 73,595.80, 110,442.30 and 42,005.80 is: 63,036.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,595.80 : 110,442.30 = 42,005.80 : x
  2. Step 2: Convert to fraction form
    73,595.80/110,442.30 = 42,005.80/x
  3. Step 3: Cross multiply
    73,595.80x = 110,442.30 × 42,005.80
  4. Step 4: Simplify right side
    73,595.80x = 4,639,217,165.34
  5. Step 5: Solve for x
    x = 4,639,217,165.34/73,595.80
  6. Step 6: Final answer
    x = 63,036.44

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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.