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Finding the Fourth Proportional to 191,167.29, 286,571.79 and 64,719.27

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Solution

The fourth proportional to 191,167.29, 286,571.79 and 64,719.27 is: 97,018.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,167.29 : 286,571.79 = 64,719.27 : x
  2. Step 2: Convert to fraction form
    191,167.29/286,571.79 = 64,719.27/x
  3. Step 3: Cross multiply
    191,167.29x = 286,571.79 × 64,719.27
  4. Step 4: Simplify right side
    191,167.29x = 18,546,717,051.39
  5. Step 5: Solve for x
    x = 18,546,717,051.39/191,167.29
  6. Step 6: Final answer
    x = 97,018.26

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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.