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Finding the Fourth Proportional to 86,818.98, 119,825.54 and 51,008.98

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Solution

The fourth proportional to 86,818.98, 119,825.54 and 51,008.98 is: 70,401.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,818.98 : 119,825.54 = 51,008.98 : x
  2. Step 2: Convert to fraction form
    86,818.98/119,825.54 = 51,008.98/x
  3. Step 3: Cross multiply
    86,818.98x = 119,825.54 × 51,008.98
  4. Step 4: Simplify right side
    86,818.98x = 6,112,178,573.35
  5. Step 5: Solve for x
    x = 6,112,178,573.35/86,818.98
  6. Step 6: Final answer
    x = 70,401.41

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1.5x scale

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.