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Finding the Fourth Proportional to 317,143,744.89, 437,661,354.60 and 177,917,496.01

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Solution

The fourth proportional to 317,143,744.89, 437,661,354.60 and 177,917,496.01 is: 245,527,820.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,143,744.89 : 437,661,354.60 = 177,917,496.01 : x
  2. Step 2: Convert to fraction form
    317,143,744.89/437,661,354.60 = 177,917,496.01/x
  3. Step 3: Cross multiply
    317,143,744.89x = 437,661,354.60 × 177,917,496.01
  4. Step 4: Simplify right side
    317,143,744.89x = 77,867,612,310,776,688
  5. Step 5: Solve for x
    x = 77,867,612,310,776,688/317,143,744.89
  6. Step 6: Final answer
    x = 245,527,820.00

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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.