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Finding the Fourth Proportional to 435,064.80, 652,402.80 and 168,736.80

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Solution

The fourth proportional to 435,064.80, 652,402.80 and 168,736.80 is: 253,029.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,064.80 : 652,402.80 = 168,736.80 : x
  2. Step 2: Convert to fraction form
    435,064.80/652,402.80 = 168,736.80/x
  3. Step 3: Cross multiply
    435,064.80x = 652,402.80 × 168,736.80
  4. Step 4: Simplify right side
    435,064.80x = 110,084,360,783.04
  5. Step 5: Solve for x
    x = 110,084,360,783.04/435,064.80
  6. Step 6: Final answer
    x = 253,029.80

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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.