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Finding the Fourth Proportional to 191,553,855.82, 264,344,310.90 and 103,447,845.01

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Solution

The fourth proportional to 191,553,855.82, 264,344,310.90 and 103,447,845.01 is: 142,758,020.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,553,855.82 : 264,344,310.90 = 103,447,845.01 : x
  2. Step 2: Convert to fraction form
    191,553,855.82/264,344,310.90 = 103,447,845.01/x
  3. Step 3: Cross multiply
    191,553,855.82x = 264,344,310.90 × 103,447,845.01
  4. Step 4: Simplify right side
    191,553,855.82x = 27,345,849,303,258,456
  5. Step 5: Solve for x
    x = 27,345,849,303,258,456/191,553,855.82
  6. Step 6: Final answer
    x = 142,758,020.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.