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Finding the Fourth Proportional to 90,602.08, 135,904.56 and 34,443.04

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Solution

The fourth proportional to 90,602.08, 135,904.56 and 34,443.04 is: 51,665.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,602.08 : 135,904.56 = 34,443.04 : x
  2. Step 2: Convert to fraction form
    90,602.08/135,904.56 = 34,443.04/x
  3. Step 3: Cross multiply
    90,602.08x = 135,904.56 × 34,443.04
  4. Step 4: Simplify right side
    90,602.08x = 4,680,966,196.26
  5. Step 5: Solve for x
    x = 4,680,966,196.26/90,602.08
  6. Step 6: Final answer
    x = 51,665.11

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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.