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Finding the Fourth Proportional to 78,354.24, 117,550.80 and 22,950.24

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Solution

The fourth proportional to 78,354.24, 117,550.80 and 22,950.24 is: 34,431.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,354.24 : 117,550.80 = 22,950.24 : x
  2. Step 2: Convert to fraction form
    78,354.24/117,550.80 = 22,950.24/x
  3. Step 3: Cross multiply
    78,354.24x = 117,550.80 × 22,950.24
  4. Step 4: Simplify right side
    78,354.24x = 2,697,819,072.19
  5. Step 5: Solve for x
    x = 2,697,819,072.19/78,354.24
  6. Step 6: Final answer
    x = 34,431.05

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1.5x scale

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.