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Finding the Fourth Proportional to 355,228.09, 533,052.29 and 130,746.19

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Solution

The fourth proportional to 355,228.09, 533,052.29 and 130,746.19 is: 196,196.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,228.09 : 533,052.29 = 130,746.19 : x
  2. Step 2: Convert to fraction form
    355,228.09/533,052.29 = 130,746.19/x
  3. Step 3: Cross multiply
    355,228.09x = 533,052.29 × 130,746.19
  4. Step 4: Simplify right side
    355,228.09x = 69,694,555,988.28
  5. Step 5: Solve for x
    x = 69,694,555,988.28/355,228.09
  6. Step 6: Final answer
    x = 196,196.64

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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.