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Finding the Fourth Proportional to 75,479,531.40, 113,219,297.10 and 75,479,531.40

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Solution

The fourth proportional to 75,479,531.40, 113,219,297.10 and 75,479,531.40 is: 113,219,297.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,479,531.40 : 113,219,297.10 = 75,479,531.40 : x
  2. Step 2: Convert to fraction form
    75,479,531.40/113,219,297.10 = 75,479,531.40/x
  3. Step 3: Cross multiply
    75,479,531.40x = 113,219,297.10 × 75,479,531.40
  4. Step 4: Simplify right side
    75,479,531.40x = 8,545,739,490,545,379
  5. Step 5: Solve for x
    x = 8,545,739,490,545,379/75,479,531.40
  6. Step 6: Final answer
    x = 113,219,297.10

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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.