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Finding the Fourth Proportional to 108,231.40, 162,372.70 and 34,359.40

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Solution

The fourth proportional to 108,231.40, 162,372.70 and 34,359.40 is: 51,547.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,231.40 : 162,372.70 = 34,359.40 : x
  2. Step 2: Convert to fraction form
    108,231.40/162,372.70 = 34,359.40/x
  3. Step 3: Cross multiply
    108,231.40x = 162,372.70 × 34,359.40
  4. Step 4: Simplify right side
    108,231.40x = 5,579,028,548.38
  5. Step 5: Solve for x
    x = 5,579,028,548.38/108,231.40
  6. Step 6: Final answer
    x = 51,547.23

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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.