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Finding the Fourth Proportional to 140,371,973.70, 210,557,960.55 and 140,371,973.70

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Solution

The fourth proportional to 140,371,973.70, 210,557,960.55 and 140,371,973.70 is: 210,557,960.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,371,973.70 : 210,557,960.55 = 140,371,973.70 : x
  2. Step 2: Convert to fraction form
    140,371,973.70/210,557,960.55 = 140,371,973.70/x
  3. Step 3: Cross multiply
    140,371,973.70x = 210,557,960.55 × 140,371,973.70
  4. Step 4: Simplify right side
    140,371,973.70x = 29,556,436,500,650,236
  5. Step 5: Solve for x
    x = 29,556,436,500,650,236/140,371,973.70
  6. Step 6: Final answer
    x = 210,557,960.55

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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.