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Finding the Fourth Proportional to 70,855,972.80, 106,095,002.40 and 70,855,972.80

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Solution

The fourth proportional to 70,855,972.80, 106,095,002.40 and 70,855,972.80 is: 106,095,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,855,972.80 : 106,095,002.40 = 70,855,972.80 : x
  2. Step 2: Convert to fraction form
    70,855,972.80/106,095,002.40 = 70,855,972.80/x
  3. Step 3: Cross multiply
    70,855,972.80x = 106,095,002.40 × 70,855,972.80
  4. Step 4: Simplify right side
    70,855,972.80x = 7,517,464,604,270,335
  5. Step 5: Solve for x
    x = 7,517,464,604,270,335/70,855,972.80
  6. Step 6: Final answer
    x = 106,095,002.40

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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.