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Finding the Fourth Proportional to 191,341.68, 286,826.44 and 91,476

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Solution

The fourth proportional to 191,341.68, 286,826.44 and 91,476 is: 137,125.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,341.68 : 286,826.44 = 91,476 : x
  2. Step 2: Convert to fraction form
    191,341.68/286,826.44 = 91,476/x
  3. Step 3: Cross multiply
    191,341.68x = 286,826.44 × 91,476
  4. Step 4: Simplify right side
    191,341.68x = 26,237,735,425.44
  5. Step 5: Solve for x
    x = 26,237,735,425.44/191,341.68
  6. Step 6: Final answer
    x = 137,125.04

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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.