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Finding the Fourth Proportional to 70,907.20, 106,330.73 and 26,502.90

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Solution

The fourth proportional to 70,907.20, 106,330.73 and 26,502.90 is: 39,743.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,907.20 : 106,330.73 = 26,502.90 : x
  2. Step 2: Convert to fraction form
    70,907.20/106,330.73 = 26,502.90/x
  3. Step 3: Cross multiply
    70,907.20x = 106,330.73 × 26,502.90
  4. Step 4: Simplify right side
    70,907.20x = 2,818,072,172.86
  5. Step 5: Solve for x
    x = 2,818,072,172.86/70,907.20
  6. Step 6: Final answer
    x = 39,743.10

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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.