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Finding the Fourth Proportional to 236,352.60, 326,154.60 and 128,921.76

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Solution

The fourth proportional to 236,352.60, 326,154.60 and 128,921.76 is: 177,905.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,352.60 : 326,154.60 = 128,921.76 : x
  2. Step 2: Convert to fraction form
    236,352.60/326,154.60 = 128,921.76/x
  3. Step 3: Cross multiply
    236,352.60x = 326,154.60 × 128,921.76
  4. Step 4: Simplify right side
    236,352.60x = 42,048,425,064.10
  5. Step 5: Solve for x
    x = 42,048,425,064.10/236,352.60
  6. Step 6: Final answer
    x = 177,905.49

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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.