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Finding the Fourth Proportional to 260,081.50, 358,941.68 and 146,911.54

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Solution

The fourth proportional to 260,081.50, 358,941.68 and 146,911.54 is: 202,754.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,081.50 : 358,941.68 = 146,911.54 : x
  2. Step 2: Convert to fraction form
    260,081.50/358,941.68 = 146,911.54/x
  3. Step 3: Cross multiply
    260,081.50x = 358,941.68 × 146,911.54
  4. Step 4: Simplify right side
    260,081.50x = 52,732,674,978.99
  5. Step 5: Solve for x
    x = 52,732,674,978.99/260,081.50
  6. Step 6: Final answer
    x = 202,754.42

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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.