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Finding the Fourth Proportional to 210,998.89, 316,498.38 and 63,254.89

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Solution

The fourth proportional to 210,998.89, 316,498.38 and 63,254.89 is: 94,882.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,998.89 : 316,498.38 = 63,254.89 : x
  2. Step 2: Convert to fraction form
    210,998.89/316,498.38 = 63,254.89/x
  3. Step 3: Cross multiply
    210,998.89x = 316,498.38 × 63,254.89
  4. Step 4: Simplify right side
    210,998.89x = 20,020,070,212.08
  5. Step 5: Solve for x
    x = 20,020,070,212.08/210,998.89
  6. Step 6: Final answer
    x = 94,882.35

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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.