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Finding the Fourth Proportional to 191,371, 287,125.62 and 60,043

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Solution

The fourth proportional to 191,371, 287,125.62 and 60,043 is: 90,086.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,371 : 287,125.62 = 60,043 : x
  2. Step 2: Convert to fraction form
    191,371/287,125.62 = 60,043/x
  3. Step 3: Cross multiply
    191,371x = 287,125.62 × 60,043
  4. Step 4: Simplify right side
    191,371x = 17,239,883,601.66
  5. Step 5: Solve for x
    x = 17,239,883,601.66/191,371
  6. Step 6: Final answer
    x = 90,086.19

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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.