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Finding the Fourth Proportional to 191,071.88, 286,608.50 and 57,953.28

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Solution

The fourth proportional to 191,071.88, 286,608.50 and 57,953.28 is: 86,930.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,071.88 : 286,608.50 = 57,953.28 : x
  2. Step 2: Convert to fraction form
    191,071.88/286,608.50 = 57,953.28/x
  3. Step 3: Cross multiply
    191,071.88x = 286,608.50 × 57,953.28
  4. Step 4: Simplify right side
    191,071.88x = 16,609,902,650.88
  5. Step 5: Solve for x
    x = 16,609,902,650.88/191,071.88
  6. Step 6: Final answer
    x = 86,930.13

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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.