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Finding the Fourth Proportional to 191,169.41, 286,754.10 and 91,026

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Solution

The fourth proportional to 191,169.41, 286,754.10 and 91,026 is: 136,539.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,169.41 : 286,754.10 = 91,026 : x
  2. Step 2: Convert to fraction form
    191,169.41/286,754.10 = 91,026/x
  3. Step 3: Cross multiply
    191,169.41x = 286,754.10 × 91,026
  4. Step 4: Simplify right side
    191,169.41x = 26,102,078,706.60
  5. Step 5: Solve for x
    x = 26,102,078,706.60/191,169.41
  6. Step 6: Final answer
    x = 136,539.00

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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.