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Finding the Fourth Proportional to 135,656.01, 187,298.06 and 84,746.30

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Solution

The fourth proportional to 135,656.01, 187,298.06 and 84,746.30 is: 117,007.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,656.01 : 187,298.06 = 84,746.30 : x
  2. Step 2: Convert to fraction form
    135,656.01/187,298.06 = 84,746.30/x
  3. Step 3: Cross multiply
    135,656.01x = 187,298.06 × 84,746.30
  4. Step 4: Simplify right side
    135,656.01x = 15,872,816,221.96
  5. Step 5: Solve for x
    x = 15,872,816,221.96/135,656.01
  6. Step 6: Final answer
    x = 117,007.84

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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.