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Finding the Fourth Proportional to 56,695.32, 85,060.80 and 34,230.96

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Solution

The fourth proportional to 56,695.32, 85,060.80 and 34,230.96 is: 51,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,695.32 : 85,060.80 = 34,230.96 : x
  2. Step 2: Convert to fraction form
    56,695.32/85,060.80 = 34,230.96/x
  3. Step 3: Cross multiply
    56,695.32x = 85,060.80 × 34,230.96
  4. Step 4: Simplify right side
    56,695.32x = 2,911,712,842.37
  5. Step 5: Solve for x
    x = 2,911,712,842.37/56,695.32
  6. Step 6: Final answer
    x = 51,357.20

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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.