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Finding the Fourth Proportional to 8,749,117.80, 13,123,676.70 and 8,749,117.80

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Solution

The fourth proportional to 8,749,117.80, 13,123,676.70 and 8,749,117.80 is: 13,123,676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749,117.80 : 13,123,676.70 = 8,749,117.80 : x
  2. Step 2: Convert to fraction form
    8,749,117.80/13,123,676.70 = 8,749,117.80/x
  3. Step 3: Cross multiply
    8,749,117.80x = 13,123,676.70 × 8,749,117.80
  4. Step 4: Simplify right side
    8,749,117.80x = 114,820,593,417,415.27
  5. Step 5: Solve for x
    x = 114,820,593,417,415.27/8,749,117.80
  6. Step 6: Final answer
    x = 13,123,676.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.