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Finding the Fourth Proportional to 56,837.79, 78,378.08 and 37,710.86

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Solution

The fourth proportional to 56,837.79, 78,378.08 and 37,710.86 is: 52,002.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,837.79 : 78,378.08 = 37,710.86 : x
  2. Step 2: Convert to fraction form
    56,837.79/78,378.08 = 37,710.86/x
  3. Step 3: Cross multiply
    56,837.79x = 78,378.08 × 37,710.86
  4. Step 4: Simplify right side
    56,837.79x = 2,955,704,221.50
  5. Step 5: Solve for x
    x = 2,955,704,221.50/56,837.79
  6. Step 6: Final answer
    x = 52,002.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.