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Finding the Fourth Proportional to 70,553,679.70, 105,830,519.55 and 70,553,679.70

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Solution

The fourth proportional to 70,553,679.70, 105,830,519.55 and 70,553,679.70 is: 105,830,519.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,553,679.70 : 105,830,519.55 = 70,553,679.70 : x
  2. Step 2: Convert to fraction form
    70,553,679.70/105,830,519.55 = 70,553,679.70/x
  3. Step 3: Cross multiply
    70,553,679.70x = 105,830,519.55 × 70,553,679.70
  4. Step 4: Simplify right side
    70,553,679.70x = 7,466,732,578,815,288
  5. Step 5: Solve for x
    x = 7,466,732,578,815,288/70,553,679.70
  6. Step 6: Final answer
    x = 105,830,519.55

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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.