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Finding the Fourth Proportional to 205,063.20, 307,594.80 and 167,738.40

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Solution

The fourth proportional to 205,063.20, 307,594.80 and 167,738.40 is: 251,607.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,063.20 : 307,594.80 = 167,738.40 : x
  2. Step 2: Convert to fraction form
    205,063.20/307,594.80 = 167,738.40/x
  3. Step 3: Cross multiply
    205,063.20x = 307,594.80 × 167,738.40
  4. Step 4: Simplify right side
    205,063.20x = 51,595,459,600.32
  5. Step 5: Solve for x
    x = 51,595,459,600.32/205,063.20
  6. Step 6: Final answer
    x = 251,607.60

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1.5x scale

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.