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Finding the Fourth Proportional to 205,411.60, 308,117.40 and 122,467.60

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Solution

The fourth proportional to 205,411.60, 308,117.40 and 122,467.60 is: 183,701.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,411.60 : 308,117.40 = 122,467.60 : x
  2. Step 2: Convert to fraction form
    205,411.60/308,117.40 = 122,467.60/x
  3. Step 3: Cross multiply
    205,411.60x = 308,117.40 × 122,467.60
  4. Step 4: Simplify right side
    205,411.60x = 37,734,398,496.24
  5. Step 5: Solve for x
    x = 37,734,398,496.24/205,411.60
  6. Step 6: Final answer
    x = 183,701.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.