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Finding the Fourth Proportional to 171,956,870, 237,300,495.60 and 93,640,400

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Solution

The fourth proportional to 171,956,870, 237,300,495.60 and 93,640,400 is: 129,223,760.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,956,870 : 237,300,495.60 = 93,640,400 : x
  2. Step 2: Convert to fraction form
    171,956,870/237,300,495.60 = 93,640,400/x
  3. Step 3: Cross multiply
    171,956,870x = 237,300,495.60 × 93,640,400
  4. Step 4: Simplify right side
    171,956,870x = 22,220,913,328,182,240
  5. Step 5: Solve for x
    x = 22,220,913,328,182,240/171,956,870
  6. Step 6: Final answer
    x = 129,223,760.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.