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Finding the Fourth Proportional to 191,086.51, 286,670.54 and 64,722.33

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Solution

The fourth proportional to 191,086.51, 286,670.54 and 64,722.33 is: 97,097.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,086.51 : 286,670.54 = 64,722.33 : x
  2. Step 2: Convert to fraction form
    191,086.51/286,670.54 = 64,722.33/x
  3. Step 3: Cross multiply
    191,086.51x = 286,670.54 × 64,722.33
  4. Step 4: Simplify right side
    191,086.51x = 18,553,985,291.16
  5. Step 5: Solve for x
    x = 18,553,985,291.16/191,086.51
  6. Step 6: Final answer
    x = 97,097.31

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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.