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Finding the Fourth Proportional to 130,168.80, 179,632.08 and 73,580.04

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Solution

The fourth proportional to 130,168.80, 179,632.08 and 73,580.04 is: 101,539.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,168.80 : 179,632.08 = 73,580.04 : x
  2. Step 2: Convert to fraction form
    130,168.80/179,632.08 = 73,580.04/x
  3. Step 3: Cross multiply
    130,168.80x = 179,632.08 × 73,580.04
  4. Step 4: Simplify right side
    130,168.80x = 13,217,335,631.68
  5. Step 5: Solve for x
    x = 13,217,335,631.68/130,168.80
  6. Step 6: Final answer
    x = 101,539.97

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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.