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Finding the Fourth Proportional to 78,502.96, 108,330.79 and 44,513.75

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Solution

The fourth proportional to 78,502.96, 108,330.79 and 44,513.75 is: 61,427.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,502.96 : 108,330.79 = 44,513.75 : x
  2. Step 2: Convert to fraction form
    78,502.96/108,330.79 = 44,513.75/x
  3. Step 3: Cross multiply
    78,502.96x = 108,330.79 × 44,513.75
  4. Step 4: Simplify right side
    78,502.96x = 4,822,209,703.36
  5. Step 5: Solve for x
    x = 4,822,209,703.36/78,502.96
  6. Step 6: Final answer
    x = 61,427.11

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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.