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Finding the Fourth Proportional to 56,916.96, 78,545.34 and 33,044.64

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Solution

The fourth proportional to 56,916.96, 78,545.34 and 33,044.64 is: 45,601.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,916.96 : 78,545.34 = 33,044.64 : x
  2. Step 2: Convert to fraction form
    56,916.96/78,545.34 = 33,044.64/x
  3. Step 3: Cross multiply
    56,916.96x = 78,545.34 × 33,044.64
  4. Step 4: Simplify right side
    56,916.96x = 2,595,502,483.98
  5. Step 5: Solve for x
    x = 2,595,502,483.98/56,916.96
  6. Step 6: Final answer
    x = 45,601.57

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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.