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Finding the Fourth Proportional to 211,275.54, 316,913.85 and 53,504.01

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Solution

The fourth proportional to 211,275.54, 316,913.85 and 53,504.01 is: 80,256.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,275.54 : 316,913.85 = 53,504.01 : x
  2. Step 2: Convert to fraction form
    211,275.54/316,913.85 = 53,504.01/x
  3. Step 3: Cross multiply
    211,275.54x = 316,913.85 × 53,504.01
  4. Step 4: Simplify right side
    211,275.54x = 16,956,161,799.54
  5. Step 5: Solve for x
    x = 16,956,161,799.54/211,275.54
  6. Step 6: Final answer
    x = 80,256.15

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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.