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Finding the Fourth Proportional to 251,368.50, 346,895.10 and 136,654.86

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Solution

The fourth proportional to 251,368.50, 346,895.10 and 136,654.86 is: 188,587.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,368.50 : 346,895.10 = 136,654.86 : x
  2. Step 2: Convert to fraction form
    251,368.50/346,895.10 = 136,654.86/x
  3. Step 3: Cross multiply
    251,368.50x = 346,895.10 × 136,654.86
  4. Step 4: Simplify right side
    251,368.50x = 47,404,901,325.19
  5. Step 5: Solve for x
    x = 47,404,901,325.19/251,368.50
  6. Step 6: Final answer
    x = 188,587.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.