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Finding the Fourth Proportional to 79,365.95, 109,529.93 and 52,461.80

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Solution

The fourth proportional to 79,365.95, 109,529.93 and 52,461.80 is: 72,400.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,365.95 : 109,529.93 = 52,461.80 : x
  2. Step 2: Convert to fraction form
    79,365.95/109,529.93 = 52,461.80/x
  3. Step 3: Cross multiply
    79,365.95x = 109,529.93 × 52,461.80
  4. Step 4: Simplify right side
    79,365.95x = 5,746,137,139.00
  5. Step 5: Solve for x
    x = 5,746,137,139.00/79,365.95
  6. Step 6: Final answer
    x = 72,400.54

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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.