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Finding the Fourth Proportional to 191,010.60, 286,515.90 and 171,983.70

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Solution

The fourth proportional to 191,010.60, 286,515.90 and 171,983.70 is: 257,975.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,010.60 : 286,515.90 = 171,983.70 : x
  2. Step 2: Convert to fraction form
    191,010.60/286,515.90 = 171,983.70/x
  3. Step 3: Cross multiply
    191,010.60x = 286,515.90 × 171,983.70
  4. Step 4: Simplify right side
    191,010.60x = 49,276,064,590.83
  5. Step 5: Solve for x
    x = 49,276,064,590.83/191,010.60
  6. Step 6: Final answer
    x = 257,975.55

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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.