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Finding the Fourth Proportional to 351,276.66, 526,916.34 and 85,036.75

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Solution

The fourth proportional to 351,276.66, 526,916.34 and 85,036.75 is: 127,555.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,276.66 : 526,916.34 = 85,036.75 : x
  2. Step 2: Convert to fraction form
    351,276.66/526,916.34 = 85,036.75/x
  3. Step 3: Cross multiply
    351,276.66x = 526,916.34 × 85,036.75
  4. Step 4: Simplify right side
    351,276.66x = 44,807,251,758.20
  5. Step 5: Solve for x
    x = 44,807,251,758.20/351,276.66
  6. Step 6: Final answer
    x = 127,555.45

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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.