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Finding the Fourth Proportional to 43,799,563.80, 65,699,345.70 and 38,130,859.80

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Solution

The fourth proportional to 43,799,563.80, 65,699,345.70 and 38,130,859.80 is: 57,196,289.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,799,563.80 : 65,699,345.70 = 38,130,859.80 : x
  2. Step 2: Convert to fraction form
    43,799,563.80/65,699,345.70 = 38,130,859.80/x
  3. Step 3: Cross multiply
    43,799,563.80x = 65,699,345.70 × 38,130,859.80
  4. Step 4: Simplify right side
    43,799,563.80x = 2,505,172,539,838,433
  5. Step 5: Solve for x
    x = 2,505,172,539,838,433/43,799,563.80
  6. Step 6: Final answer
    x = 57,196,289.70

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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.