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Finding the Fourth Proportional to 56,398.59, 84,639.23 and 45,437.62

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Solution

The fourth proportional to 56,398.59, 84,639.23 and 45,437.62 is: 68,189.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,398.59 : 84,639.23 = 45,437.62 : x
  2. Step 2: Convert to fraction form
    56,398.59/84,639.23 = 45,437.62/x
  3. Step 3: Cross multiply
    56,398.59x = 84,639.23 × 45,437.62
  4. Step 4: Simplify right side
    56,398.59x = 3,845,804,986.63
  5. Step 5: Solve for x
    x = 3,845,804,986.63/56,398.59
  6. Step 6: Final answer
    x = 68,189.74

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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.