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Finding the Fourth Proportional to 70,641.88, 105,773.10 and 37,292.56

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Solution

The fourth proportional to 70,641.88, 105,773.10 and 37,292.56 is: 55,838.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,641.88 : 105,773.10 = 37,292.56 : x
  2. Step 2: Convert to fraction form
    70,641.88/105,773.10 = 37,292.56/x
  3. Step 3: Cross multiply
    70,641.88x = 105,773.10 × 37,292.56
  4. Step 4: Simplify right side
    70,641.88x = 3,944,549,678.14
  5. Step 5: Solve for x
    x = 3,944,549,678.14/70,641.88
  6. Step 6: Final answer
    x = 55,838.68

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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.