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Finding the Fourth Proportional to 211,173.79, 316,802.01 and 92,844.76

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Solution

The fourth proportional to 211,173.79, 316,802.01 and 92,844.76 is: 139,285.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,173.79 : 316,802.01 = 92,844.76 : x
  2. Step 2: Convert to fraction form
    211,173.79/316,802.01 = 92,844.76/x
  3. Step 3: Cross multiply
    211,173.79x = 316,802.01 × 92,844.76
  4. Step 4: Simplify right side
    211,173.79x = 29,413,406,585.97
  5. Step 5: Solve for x
    x = 29,413,406,585.97/211,173.79
  6. Step 6: Final answer
    x = 139,285.31

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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.