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Finding the Fourth Proportional to 325,545.60, 487,929.60 and 136,005.60

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Solution

The fourth proportional to 325,545.60, 487,929.60 and 136,005.60 is: 203,845.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,545.60 : 487,929.60 = 136,005.60 : x
  2. Step 2: Convert to fraction form
    325,545.60/487,929.60 = 136,005.60/x
  3. Step 3: Cross multiply
    325,545.60x = 487,929.60 × 136,005.60
  4. Step 4: Simplify right side
    325,545.60x = 66,361,158,005.76
  5. Step 5: Solve for x
    x = 66,361,158,005.76/325,545.60
  6. Step 6: Final answer
    x = 203,845.97

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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.