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Finding the Fourth Proportional to 43,809,616.40, 65,588,453.40 and 42,549,904.40

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Solution

The fourth proportional to 43,809,616.40, 65,588,453.40 and 42,549,904.40 is: 63,702,507.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,809,616.40 : 65,588,453.40 = 42,549,904.40 : x
  2. Step 2: Convert to fraction form
    43,809,616.40/65,588,453.40 = 42,549,904.40/x
  3. Step 3: Cross multiply
    43,809,616.40x = 65,588,453.40 × 42,549,904.40
  4. Step 4: Simplify right side
    43,809,616.40x = 2,790,782,421,913,855
  5. Step 5: Solve for x
    x = 2,790,782,421,913,855/43,809,616.40
  6. Step 6: Final answer
    x = 63,702,507.61

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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.