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Finding the Fourth Proportional to 303,538.38, 455,330.04 and 116,549.88

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Solution

The fourth proportional to 303,538.38, 455,330.04 and 116,549.88 is: 174,833.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,538.38 : 455,330.04 = 116,549.88 : x
  2. Step 2: Convert to fraction form
    303,538.38/455,330.04 = 116,549.88/x
  3. Step 3: Cross multiply
    303,538.38x = 455,330.04 × 116,549.88
  4. Step 4: Simplify right side
    303,538.38x = 53,068,661,522.40
  5. Step 5: Solve for x
    x = 53,068,661,522.40/303,538.38
  6. Step 6: Final answer
    x = 174,833.45

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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.