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Finding the Fourth Proportional to 210,618.93, 316,208.66 and 110,849.19

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Solution

The fourth proportional to 210,618.93, 316,208.66 and 110,849.19 is: 166,421.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,618.93 : 316,208.66 = 110,849.19 : x
  2. Step 2: Convert to fraction form
    210,618.93/316,208.66 = 110,849.19/x
  3. Step 3: Cross multiply
    210,618.93x = 316,208.66 × 110,849.19
  4. Step 4: Simplify right side
    210,618.93x = 35,051,473,277.74
  5. Step 5: Solve for x
    x = 35,051,473,277.74/210,618.93
  6. Step 6: Final answer
    x = 166,421.29

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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.