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Finding the Fourth Proportional to 124,429.80, 186,644.70 and 116,653.80

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Solution

The fourth proportional to 124,429.80, 186,644.70 and 116,653.80 is: 174,980.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,429.80 : 186,644.70 = 116,653.80 : x
  2. Step 2: Convert to fraction form
    124,429.80/186,644.70 = 116,653.80/x
  3. Step 3: Cross multiply
    124,429.80x = 186,644.70 × 116,653.80
  4. Step 4: Simplify right side
    124,429.80x = 21,772,813,504.86
  5. Step 5: Solve for x
    x = 21,772,813,504.86/124,429.80
  6. Step 6: Final answer
    x = 174,980.70

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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.