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Finding the Fourth Proportional to 354,294,703.20, 531,442,054.80 and 225,473,404.80

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Solution

The fourth proportional to 354,294,703.20, 531,442,054.80 and 225,473,404.80 is: 338,210,107.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,294,703.20 : 531,442,054.80 = 225,473,404.80 : x
  2. Step 2: Convert to fraction form
    354,294,703.20/531,442,054.80 = 225,473,404.80/x
  3. Step 3: Cross multiply
    354,294,703.20x = 531,442,054.80 × 225,473,404.80
  4. Step 4: Simplify right side
    354,294,703.20x = 119,826,049,549,664,192
  5. Step 5: Solve for x
    x = 119,826,049,549,664,192/354,294,703.20
  6. Step 6: Final answer
    x = 338,210,107.20

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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.