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Finding the Fourth Proportional to 85,329,218.10, 127,993,827.15 and 85,329,218.10

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Solution

The fourth proportional to 85,329,218.10, 127,993,827.15 and 85,329,218.10 is: 127,993,827.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,329,218.10 : 127,993,827.15 = 85,329,218.10 : x
  2. Step 2: Convert to fraction form
    85,329,218.10/127,993,827.15 = 85,329,218.10/x
  3. Step 3: Cross multiply
    85,329,218.10x = 127,993,827.15 × 85,329,218.10
  4. Step 4: Simplify right side
    85,329,218.10x = 10,921,613,192,336,052
  5. Step 5: Solve for x
    x = 10,921,613,192,336,052/85,329,218.10
  6. Step 6: Final answer
    x = 127,993,827.15

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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.