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Finding the Fourth Proportional to 326,599,203.60, 489,940,795.80 and 162,920,624.40

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Solution

The fourth proportional to 326,599,203.60, 489,940,795.80 and 162,920,624.40 is: 244,401,883.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,599,203.60 : 489,940,795.80 = 162,920,624.40 : x
  2. Step 2: Convert to fraction form
    326,599,203.60/489,940,795.80 = 162,920,624.40/x
  3. Step 3: Cross multiply
    326,599,203.60x = 489,940,795.80 × 162,920,624.40
  4. Step 4: Simplify right side
    326,599,203.60x = 79,821,460,370,768,896
  5. Step 5: Solve for x
    x = 79,821,460,370,768,896/326,599,203.60
  6. Step 6: Final answer
    x = 244,401,883.08

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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.