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Finding the Fourth Proportional to 71,752,011.60, 107,628,017.40 and 50,210,936.40

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Solution

The fourth proportional to 71,752,011.60, 107,628,017.40 and 50,210,936.40 is: 75,316,404.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,752,011.60 : 107,628,017.40 = 50,210,936.40 : x
  2. Step 2: Convert to fraction form
    71,752,011.60/107,628,017.40 = 50,210,936.40/x
  3. Step 3: Cross multiply
    71,752,011.60x = 107,628,017.40 × 50,210,936.40
  4. Step 4: Simplify right side
    71,752,011.60x = 5,404,103,536,529,493
  5. Step 5: Solve for x
    x = 5,404,103,536,529,493/71,752,011.60
  6. Step 6: Final answer
    x = 75,316,404.60

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1.5x scale

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.