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Finding the Fourth Proportional to 201,244.68, 277,621.94 and 144,688.86

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Solution

The fourth proportional to 201,244.68, 277,621.94 and 144,688.86 is: 199,601.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,244.68 : 277,621.94 = 144,688.86 : x
  2. Step 2: Convert to fraction form
    201,244.68/277,621.94 = 144,688.86/x
  3. Step 3: Cross multiply
    201,244.68x = 277,621.94 × 144,688.86
  4. Step 4: Simplify right side
    201,244.68x = 40,168,802,009.59
  5. Step 5: Solve for x
    x = 40,168,802,009.59/201,244.68
  6. Step 6: Final answer
    x = 199,601.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.