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Finding the Fourth Proportional to 97,806,653.20, 146,709,979.80 and 63,794,429.20

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Solution

The fourth proportional to 97,806,653.20, 146,709,979.80 and 63,794,429.20 is: 95,691,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,806,653.20 : 146,709,979.80 = 63,794,429.20 : x
  2. Step 2: Convert to fraction form
    97,806,653.20/146,709,979.80 = 63,794,429.20/x
  3. Step 3: Cross multiply
    97,806,653.20x = 146,709,979.80 × 63,794,429.20
  4. Step 4: Simplify right side
    97,806,653.20x = 9,359,279,419,284,532
  5. Step 5: Solve for x
    x = 9,359,279,419,284,532/97,806,653.20
  6. Step 6: Final answer
    x = 95,691,643.80

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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.