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Finding the Fourth Proportional to 260,239.36, 359,121 and 147,059.68

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Solution

The fourth proportional to 260,239.36, 359,121 and 147,059.68 is: 202,937.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,239.36 : 359,121 = 147,059.68 : x
  2. Step 2: Convert to fraction form
    260,239.36/359,121 = 147,059.68/x
  3. Step 3: Cross multiply
    260,239.36x = 359,121 × 147,059.68
  4. Step 4: Simplify right side
    260,239.36x = 52,812,219,341.28
  5. Step 5: Solve for x
    x = 52,812,219,341.28/260,239.36
  6. Step 6: Final answer
    x = 202,937.09

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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.