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Finding the Fourth Proportional to 56,685.81, 84,528.62 and 56,179.92

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Solution

The fourth proportional to 56,685.81, 84,528.62 and 56,179.92 is: 83,774.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,685.81 : 84,528.62 = 56,179.92 : x
  2. Step 2: Convert to fraction form
    56,685.81/84,528.62 = 56,179.92/x
  3. Step 3: Cross multiply
    56,685.81x = 84,528.62 × 56,179.92
  4. Step 4: Simplify right side
    56,685.81x = 4,748,810,828.41
  5. Step 5: Solve for x
    x = 4,748,810,828.41/56,685.81
  6. Step 6: Final answer
    x = 83,774.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.