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Finding the Fourth Proportional to 129,310,367.95, 193,965,551.93 and 129,310,367.95

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Solution

The fourth proportional to 129,310,367.95, 193,965,551.93 and 129,310,367.95 is: 193,965,551.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,310,367.95 : 193,965,551.93 = 129,310,367.95 : x
  2. Step 2: Convert to fraction form
    129,310,367.95/193,965,551.93 = 129,310,367.95/x
  3. Step 3: Cross multiply
    129,310,367.95x = 193,965,551.93 × 129,310,367.95
  4. Step 4: Simplify right side
    129,310,367.95x = 25,081,756,889,693,136
  5. Step 5: Solve for x
    x = 25,081,756,889,693,136/129,310,367.95
  6. Step 6: Final answer
    x = 193,965,551.93

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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.