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Finding the Fourth Proportional to 169,477.20, 254,215.80 and 134,047.80

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Solution

The fourth proportional to 169,477.20, 254,215.80 and 134,047.80 is: 201,071.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,477.20 : 254,215.80 = 134,047.80 : x
  2. Step 2: Convert to fraction form
    169,477.20/254,215.80 = 134,047.80/x
  3. Step 3: Cross multiply
    169,477.20x = 254,215.80 × 134,047.80
  4. Step 4: Simplify right side
    169,477.20x = 34,077,068,715.24
  5. Step 5: Solve for x
    x = 34,077,068,715.24/169,477.20
  6. Step 6: Final answer
    x = 201,071.70

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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.