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Finding the Fourth Proportional to 124,817.60, 186,837.60 and 120,929.60

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Solution

The fourth proportional to 124,817.60, 186,837.60 and 120,929.60 is: 181,017.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,817.60 : 186,837.60 = 120,929.60 : x
  2. Step 2: Convert to fraction form
    124,817.60/186,837.60 = 120,929.60/x
  3. Step 3: Cross multiply
    124,817.60x = 186,837.60 × 120,929.60
  4. Step 4: Simplify right side
    124,817.60x = 22,594,196,232.96
  5. Step 5: Solve for x
    x = 22,594,196,232.96/124,817.60
  6. Step 6: Final answer
    x = 181,017.71

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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.