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Finding the Fourth Proportional to 79,247,816.40, 110,720,194.80 and 79,247,816.40

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Solution

The fourth proportional to 79,247,816.40, 110,720,194.80 and 79,247,816.40 is: 110,720,194.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,247,816.40 : 110,720,194.80 = 79,247,816.40 : x
  2. Step 2: Convert to fraction form
    79,247,816.40/110,720,194.80 = 79,247,816.40/x
  3. Step 3: Cross multiply
    79,247,816.40x = 110,720,194.80 × 79,247,816.40
  4. Step 4: Simplify right side
    79,247,816.40x = 8,774,333,669,282,635
  5. Step 5: Solve for x
    x = 8,774,333,669,282,635/79,247,816.40
  6. Step 6: Final answer
    x = 110,720,194.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.