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Finding the Fourth Proportional to 75,479,530.40, 113,219,295.60 and 75,479,530.40

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Solution

The fourth proportional to 75,479,530.40, 113,219,295.60 and 75,479,530.40 is: 113,219,295.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,479,530.40 : 113,219,295.60 = 75,479,530.40 : x
  2. Step 2: Convert to fraction form
    75,479,530.40/113,219,295.60 = 75,479,530.40/x
  3. Step 3: Cross multiply
    75,479,530.40x = 113,219,295.60 × 75,479,530.40
  4. Step 4: Simplify right side
    75,479,530.40x = 8,545,739,264,106,786
  5. Step 5: Solve for x
    x = 8,545,739,264,106,786/75,479,530.40
  6. Step 6: Final answer
    x = 113,219,295.60

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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.