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Finding the Fourth Proportional to 210,827.61, 316,272.67 and 61,049.20

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Solution

The fourth proportional to 210,827.61, 316,272.67 and 61,049.20 is: 91,582.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,827.61 : 316,272.67 = 61,049.20 : x
  2. Step 2: Convert to fraction form
    210,827.61/316,272.67 = 61,049.20/x
  3. Step 3: Cross multiply
    210,827.61x = 316,272.67 × 61,049.20
  4. Step 4: Simplify right side
    210,827.61x = 19,308,193,485.36
  5. Step 5: Solve for x
    x = 19,308,193,485.36/210,827.61
  6. Step 6: Final answer
    x = 91,582.85

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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.