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Finding the Fourth Proportional to 169,715.60, 254,573.40 and 130,470.80

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Solution

The fourth proportional to 169,715.60, 254,573.40 and 130,470.80 is: 195,706.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,715.60 : 254,573.40 = 130,470.80 : x
  2. Step 2: Convert to fraction form
    169,715.60/254,573.40 = 130,470.80/x
  3. Step 3: Cross multiply
    169,715.60x = 254,573.40 × 130,470.80
  4. Step 4: Simplify right side
    169,715.60x = 33,214,395,156.72
  5. Step 5: Solve for x
    x = 33,214,395,156.72/169,715.60
  6. Step 6: Final answer
    x = 195,706.20

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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.