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Finding the Fourth Proportional to 65,213,718.60, 97,795,694.70 and 19,760,406.60

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Solution

The fourth proportional to 65,213,718.60, 97,795,694.70 and 19,760,406.60 is: 29,633,070.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,213,718.60 : 97,795,694.70 = 19,760,406.60 : x
  2. Step 2: Convert to fraction form
    65,213,718.60/97,795,694.70 = 19,760,406.60/x
  3. Step 3: Cross multiply
    65,213,718.60x = 97,795,694.70 × 19,760,406.60
  4. Step 4: Simplify right side
    65,213,718.60x = 1,932,482,691,001,465.25
  5. Step 5: Solve for x
    x = 1,932,482,691,001,465.25/65,213,718.60
  6. Step 6: Final answer
    x = 29,633,070.04

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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.