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Finding the Fourth Proportional to 191,308.84, 286,840.17 and 91,466.82

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Solution

The fourth proportional to 191,308.84, 286,840.17 and 91,466.82 is: 137,141.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,308.84 : 286,840.17 = 91,466.82 : x
  2. Step 2: Convert to fraction form
    191,308.84/286,840.17 = 91,466.82/x
  3. Step 3: Cross multiply
    191,308.84x = 286,840.17 × 91,466.82
  4. Step 4: Simplify right side
    191,308.84x = 26,236,358,198.16
  5. Step 5: Solve for x
    x = 26,236,358,198.16/191,308.84
  6. Step 6: Final answer
    x = 137,141.38

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1.5x scale

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.