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Finding the Fourth Proportional to 69,857,854.92, 104,670,941.04 and 42,481,336.08

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Solution

The fourth proportional to 69,857,854.92, 104,670,941.04 and 42,481,336.08 is: 63,651,559.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,857,854.92 : 104,670,941.04 = 42,481,336.08 : x
  2. Step 2: Convert to fraction form
    69,857,854.92/104,670,941.04 = 42,481,336.08/x
  3. Step 3: Cross multiply
    69,857,854.92x = 104,670,941.04 × 42,481,336.08
  4. Step 4: Simplify right side
    69,857,854.92x = 4,446,561,424,130,105
  5. Step 5: Solve for x
    x = 4,446,561,424,130,105/69,857,854.92
  6. Step 6: Final answer
    x = 63,651,559.72

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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.