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Finding the Fourth Proportional to 79,803.11, 110,117.93 and 45,813.08

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Solution

The fourth proportional to 79,803.11, 110,117.93 and 45,813.08 is: 63,216.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,803.11 : 110,117.93 = 45,813.08 : x
  2. Step 2: Convert to fraction form
    79,803.11/110,117.93 = 45,813.08/x
  3. Step 3: Cross multiply
    79,803.11x = 110,117.93 × 45,813.08
  4. Step 4: Simplify right side
    79,803.11x = 5,044,840,756.87
  5. Step 5: Solve for x
    x = 5,044,840,756.87/79,803.11
  6. Step 6: Final answer
    x = 63,216.10

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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.