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Finding the Fourth Proportional to 49,663,421.20, 74,495,131.80 and 49,663,421.20

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Solution

The fourth proportional to 49,663,421.20, 74,495,131.80 and 49,663,421.20 is: 74,495,131.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,663,421.20 : 74,495,131.80 = 49,663,421.20 : x
  2. Step 2: Convert to fraction form
    49,663,421.20/74,495,131.80 = 49,663,421.20/x
  3. Step 3: Cross multiply
    49,663,421.20x = 74,495,131.80 × 49,663,421.20
  4. Step 4: Simplify right side
    49,663,421.20x = 3,699,683,107,932,914
  5. Step 5: Solve for x
    x = 3,699,683,107,932,914/49,663,421.20
  6. Step 6: Final answer
    x = 74,495,131.80

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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.