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Finding the Fourth Proportional to 217,203,302.80, 325,812,827.40 and 63,864,859.60

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Solution

The fourth proportional to 217,203,302.80, 325,812,827.40 and 63,864,859.60 is: 95,799,604.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,203,302.80 : 325,812,827.40 = 63,864,859.60 : x
  2. Step 2: Convert to fraction form
    217,203,302.80/325,812,827.40 = 63,864,859.60/x
  3. Step 3: Cross multiply
    217,203,302.80x = 325,812,827.40 × 63,864,859.60
  4. Step 4: Simplify right side
    217,203,302.80x = 20,807,990,477,780,032
  5. Step 5: Solve for x
    x = 20,807,990,477,780,032/217,203,302.80
  6. Step 6: Final answer
    x = 95,799,604.38

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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.