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Finding the Fourth Proportional to 84,915.10, 119,056.10 and 84,915.10

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Solution

The fourth proportional to 84,915.10, 119,056.10 and 84,915.10 is: 119,056.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,915.10 : 119,056.10 = 84,915.10 : x
  2. Step 2: Convert to fraction form
    84,915.10/119,056.10 = 84,915.10/x
  3. Step 3: Cross multiply
    84,915.10x = 119,056.10 × 84,915.10
  4. Step 4: Simplify right side
    84,915.10x = 10,109,660,637.11
  5. Step 5: Solve for x
    x = 10,109,660,637.11/84,915.10
  6. Step 6: Final answer
    x = 119,056.10

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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.