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Finding the Fourth Proportional to 188,774.72, 260,450.46 and 107,089.50

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Solution

The fourth proportional to 188,774.72, 260,450.46 and 107,089.50 is: 147,750.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,774.72 : 260,450.46 = 107,089.50 : x
  2. Step 2: Convert to fraction form
    188,774.72/260,450.46 = 107,089.50/x
  3. Step 3: Cross multiply
    188,774.72x = 260,450.46 × 107,089.50
  4. Step 4: Simplify right side
    188,774.72x = 27,891,509,536.17
  5. Step 5: Solve for x
    x = 27,891,509,536.17/188,774.72
  6. Step 6: Final answer
    x = 147,750.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.