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Finding the Fourth Proportional to 326,752,203.60, 490,128,305.40 and 119,490,213.60

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Solution

The fourth proportional to 326,752,203.60, 490,128,305.40 and 119,490,213.60 is: 179,235,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,752,203.60 : 490,128,305.40 = 119,490,213.60 : x
  2. Step 2: Convert to fraction form
    326,752,203.60/490,128,305.40 = 119,490,213.60/x
  3. Step 3: Cross multiply
    326,752,203.60x = 490,128,305.40 × 119,490,213.60
  4. Step 4: Simplify right side
    326,752,203.60x = 58,565,535,903,652,024
  5. Step 5: Solve for x
    x = 58,565,535,903,652,024/326,752,203.60
  6. Step 6: Final answer
    x = 179,235,320.40

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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.