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Finding the Fourth Proportional to 253,368.22, 380,062.04 and 113,128.06

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Solution

The fourth proportional to 253,368.22, 380,062.04 and 113,128.06 is: 169,696.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,368.22 : 380,062.04 = 113,128.06 : x
  2. Step 2: Convert to fraction form
    253,368.22/380,062.04 = 113,128.06/x
  3. Step 3: Cross multiply
    253,368.22x = 380,062.04 × 113,128.06
  4. Step 4: Simplify right side
    253,368.22x = 42,995,679,647.35
  5. Step 5: Solve for x
    x = 42,995,679,647.35/253,368.22
  6. Step 6: Final answer
    x = 169,696.42

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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.