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Finding the Fourth Proportional to 251,429.88, 376,895.70 and 118,071.42

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Solution

The fourth proportional to 251,429.88, 376,895.70 and 118,071.42 is: 176,990.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,429.88 : 376,895.70 = 118,071.42 : x
  2. Step 2: Convert to fraction form
    251,429.88/376,895.70 = 118,071.42/x
  3. Step 3: Cross multiply
    251,429.88x = 376,895.70 × 118,071.42
  4. Step 4: Simplify right side
    251,429.88x = 44,500,610,490.89
  5. Step 5: Solve for x
    x = 44,500,610,490.89/251,429.88
  6. Step 6: Final answer
    x = 176,990.14

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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.