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Finding the Fourth Proportional to 43,456,001.60, 65,191,875.60 and 21,836,194.40

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Solution

The fourth proportional to 43,456,001.60, 65,191,875.60 and 21,836,194.40 is: 32,758,247.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,456,001.60 : 65,191,875.60 = 21,836,194.40 : x
  2. Step 2: Convert to fraction form
    43,456,001.60/65,191,875.60 = 21,836,194.40/x
  3. Step 3: Cross multiply
    43,456,001.60x = 65,191,875.60 × 21,836,194.40
  4. Step 4: Simplify right side
    43,456,001.60x = 1,423,542,468,902,216.50
  5. Step 5: Solve for x
    x = 1,423,542,468,902,216.50/43,456,001.60
  6. Step 6: Final answer
    x = 32,758,247.80

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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.