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Finding the Fourth Proportional to 84,905.10, 119,042.10 and 84,905.10

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Solution

The fourth proportional to 84,905.10, 119,042.10 and 84,905.10 is: 119,042.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,905.10 : 119,042.10 = 84,905.10 : x
  2. Step 2: Convert to fraction form
    84,905.10/119,042.10 = 84,905.10/x
  3. Step 3: Cross multiply
    84,905.10x = 119,042.10 × 84,905.10
  4. Step 4: Simplify right side
    84,905.10x = 10,107,281,404.71
  5. Step 5: Solve for x
    x = 10,107,281,404.71/84,905.10
  6. Step 6: Final answer
    x = 119,042.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.