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Finding the Fourth Proportional to 360,693,639.71, 497,758,187.60 and 195,681,209.21

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Solution

The fourth proportional to 360,693,639.71, 497,758,187.60 and 195,681,209.21 is: 270,040,592.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,693,639.71 : 497,758,187.60 = 195,681,209.21 : x
  2. Step 2: Convert to fraction form
    360,693,639.71/497,758,187.60 = 195,681,209.21/x
  3. Step 3: Cross multiply
    360,693,639.71x = 497,758,187.60 × 195,681,209.21
  4. Step 4: Simplify right side
    360,693,639.71x = 97,401,924,042,879,232
  5. Step 5: Solve for x
    x = 97,401,924,042,879,232/360,693,639.71
  6. Step 6: Final answer
    x = 270,040,592.13

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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.