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Finding the Fourth Proportional to 78,703.93, 108,615.27 and 44,259.51

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Solution

The fourth proportional to 78,703.93, 108,615.27 and 44,259.51 is: 61,080.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,703.93 : 108,615.27 = 44,259.51 : x
  2. Step 2: Convert to fraction form
    78,703.93/108,615.27 = 44,259.51/x
  3. Step 3: Cross multiply
    78,703.93x = 108,615.27 × 44,259.51
  4. Step 4: Simplify right side
    78,703.93x = 4,807,258,628.72
  5. Step 5: Solve for x
    x = 4,807,258,628.72/78,703.93
  6. Step 6: Final answer
    x = 61,080.29

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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.