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Finding the Fourth Proportional to 77,603.60, 116,421.60 and 44,296.40

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Solution

The fourth proportional to 77,603.60, 116,421.60 and 44,296.40 is: 66,453.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,603.60 : 116,421.60 = 44,296.40 : x
  2. Step 2: Convert to fraction form
    77,603.60/116,421.60 = 44,296.40/x
  3. Step 3: Cross multiply
    77,603.60x = 116,421.60 × 44,296.40
  4. Step 4: Simplify right side
    77,603.60x = 5,157,057,762.24
  5. Step 5: Solve for x
    x = 5,157,057,762.24/77,603.60
  6. Step 6: Final answer
    x = 66,453.85

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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.