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Finding the Fourth Proportional to 70,807,272.80, 106,021,952.40 and 70,807,272.80

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Solution

The fourth proportional to 70,807,272.80, 106,021,952.40 and 70,807,272.80 is: 106,021,952.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,807,272.80 : 106,021,952.40 = 70,807,272.80 : x
  2. Step 2: Convert to fraction form
    70,807,272.80/106,021,952.40 = 70,807,272.80/x
  3. Step 3: Cross multiply
    70,807,272.80x = 106,021,952.40 × 70,807,272.80
  4. Step 4: Simplify right side
    70,807,272.80x = 7,507,125,306,375,415
  5. Step 5: Solve for x
    x = 7,507,125,306,375,415/70,807,272.80
  6. Step 6: Final answer
    x = 106,021,952.40

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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.