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Finding the Fourth Proportional to 58,562,978.40, 87,844,467.60 and 43,446,434.40

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Solution

The fourth proportional to 58,562,978.40, 87,844,467.60 and 43,446,434.40 is: 65,169,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,562,978.40 : 87,844,467.60 = 43,446,434.40 : x
  2. Step 2: Convert to fraction form
    58,562,978.40/87,844,467.60 = 43,446,434.40/x
  3. Step 3: Cross multiply
    58,562,978.40x = 87,844,467.60 × 43,446,434.40
  4. Step 4: Simplify right side
    58,562,978.40x = 3,816,528,898,986,325
  5. Step 5: Solve for x
    x = 3,816,528,898,986,325/58,562,978.40
  6. Step 6: Final answer
    x = 65,169,651.60

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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.