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Finding the Fourth Proportional to 82,963,387.40, 115,880,003.80 and 82,963,387.40

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Solution

The fourth proportional to 82,963,387.40, 115,880,003.80 and 82,963,387.40 is: 115,880,003.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,963,387.40 : 115,880,003.80 = 82,963,387.40 : x
  2. Step 2: Convert to fraction form
    82,963,387.40/115,880,003.80 = 82,963,387.40/x
  3. Step 3: Cross multiply
    82,963,387.40x = 115,880,003.80 × 82,963,387.40
  4. Step 4: Simplify right side
    82,963,387.40x = 9,613,797,647,172,872
  5. Step 5: Solve for x
    x = 9,613,797,647,172,872/82,963,387.40
  6. Step 6: Final answer
    x = 115,880,003.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.