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Finding the Fourth Proportional to 191,383.59, 286,373.26 and 159,715.46

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Solution

The fourth proportional to 191,383.59, 286,373.26 and 159,715.46 is: 238,987.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,383.59 : 286,373.26 = 159,715.46 : x
  2. Step 2: Convert to fraction form
    191,383.59/286,373.26 = 159,715.46/x
  3. Step 3: Cross multiply
    191,383.59x = 286,373.26 × 159,715.46
  4. Step 4: Simplify right side
    191,383.59x = 45,738,237,269.24
  5. Step 5: Solve for x
    x = 45,738,237,269.24/191,383.59
  6. Step 6: Final answer
    x = 238,987.25

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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.