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Finding the Fourth Proportional to 235,841.22, 325,461.27 and 128,411.68

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Solution

The fourth proportional to 235,841.22, 325,461.27 and 128,411.68 is: 177,208.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,841.22 : 325,461.27 = 128,411.68 : x
  2. Step 2: Convert to fraction form
    235,841.22/325,461.27 = 128,411.68/x
  3. Step 3: Cross multiply
    235,841.22x = 325,461.27 × 128,411.68
  4. Step 4: Simplify right side
    235,841.22x = 41,793,027,650.29
  5. Step 5: Solve for x
    x = 41,793,027,650.29/235,841.22
  6. Step 6: Final answer
    x = 177,208.33

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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.