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Finding the Fourth Proportional to 86,901.66, 119,939.84 and 63,097.58

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Solution

The fourth proportional to 86,901.66, 119,939.84 and 63,097.58 is: 87,085.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,901.66 : 119,939.84 = 63,097.58 : x
  2. Step 2: Convert to fraction form
    86,901.66/119,939.84 = 63,097.58/x
  3. Step 3: Cross multiply
    86,901.66x = 119,939.84 × 63,097.58
  4. Step 4: Simplify right side
    86,901.66x = 7,567,913,870.56
  5. Step 5: Solve for x
    x = 7,567,913,870.56/86,901.66
  6. Step 6: Final answer
    x = 87,085.95

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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.