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Finding the Fourth Proportional to 76,312.98, 114,339.86 and 36,888.66

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Solution

The fourth proportional to 76,312.98, 114,339.86 and 36,888.66 is: 55,270.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,312.98 : 114,339.86 = 36,888.66 : x
  2. Step 2: Convert to fraction form
    76,312.98/114,339.86 = 36,888.66/x
  3. Step 3: Cross multiply
    76,312.98x = 114,339.86 × 36,888.66
  4. Step 4: Simplify right side
    76,312.98x = 4,217,844,219.99
  5. Step 5: Solve for x
    x = 4,217,844,219.99/76,312.98
  6. Step 6: Final answer
    x = 55,270.34

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1.5x scale

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.