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Finding the Fourth Proportional to 141,956.64, 212,939.28 and 53,192.52

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Solution

The fourth proportional to 141,956.64, 212,939.28 and 53,192.52 is: 79,790.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,956.64 : 212,939.28 = 53,192.52 : x
  2. Step 2: Convert to fraction form
    141,956.64/212,939.28 = 53,192.52/x
  3. Step 3: Cross multiply
    141,956.64x = 212,939.28 × 53,192.52
  4. Step 4: Simplify right side
    141,956.64x = 11,326,776,910.19
  5. Step 5: Solve for x
    x = 11,326,776,910.19/141,956.64
  6. Step 6: Final answer
    x = 79,790.40

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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.