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Finding the Fourth Proportional to 64,491,878.40, 96,737,817.60 and 64,491,878.40

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Solution

The fourth proportional to 64,491,878.40, 96,737,817.60 and 64,491,878.40 is: 96,737,817.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,491,878.40 : 96,737,817.60 = 64,491,878.40 : x
  2. Step 2: Convert to fraction form
    64,491,878.40/96,737,817.60 = 64,491,878.40/x
  3. Step 3: Cross multiply
    64,491,878.40x = 96,737,817.60 × 64,491,878.40
  4. Step 4: Simplify right side
    64,491,878.40x = 6,238,803,569,340,579
  5. Step 5: Solve for x
    x = 6,238,803,569,340,579/64,491,878.40
  6. Step 6: Final answer
    x = 96,737,817.60

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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.