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Finding the Fourth Proportional to 122,192.04, 168,635.88 and 71,202

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Solution

The fourth proportional to 122,192.04, 168,635.88 and 71,202 is: 98,265.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,192.04 : 168,635.88 = 71,202 : x
  2. Step 2: Convert to fraction form
    122,192.04/168,635.88 = 71,202/x
  3. Step 3: Cross multiply
    122,192.04x = 168,635.88 × 71,202
  4. Step 4: Simplify right side
    122,192.04x = 12,007,211,927.76
  5. Step 5: Solve for x
    x = 12,007,211,927.76/122,192.04
  6. Step 6: Final answer
    x = 98,265.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.