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Finding the Fourth Proportional to 343,626.01, 515,315.49 and 118,925.46

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Solution

The fourth proportional to 343,626.01, 515,315.49 and 118,925.46 is: 178,345.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,626.01 : 515,315.49 = 118,925.46 : x
  2. Step 2: Convert to fraction form
    343,626.01/515,315.49 = 118,925.46/x
  3. Step 3: Cross multiply
    343,626.01x = 515,315.49 × 118,925.46
  4. Step 4: Simplify right side
    343,626.01x = 61,284,131,247.40
  5. Step 5: Solve for x
    x = 61,284,131,247.40/343,626.01
  6. Step 6: Final answer
    x = 178,345.44

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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.