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Finding the Fourth Proportional to 112,294.80, 168,053.40 and 102,963.60

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Solution

The fourth proportional to 112,294.80, 168,053.40 and 102,963.60 is: 154,088.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,294.80 : 168,053.40 = 102,963.60 : x
  2. Step 2: Convert to fraction form
    112,294.80/168,053.40 = 102,963.60/x
  3. Step 3: Cross multiply
    112,294.80x = 168,053.40 × 102,963.60
  4. Step 4: Simplify right side
    112,294.80x = 17,303,383,056.24
  5. Step 5: Solve for x
    x = 17,303,383,056.24/112,294.80
  6. Step 6: Final answer
    x = 154,088.91

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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.