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Finding the Fourth Proportional to 86,803.44, 119,901.24 and 64,188.24

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Solution

The fourth proportional to 86,803.44, 119,901.24 and 64,188.24 is: 88,662.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,803.44 : 119,901.24 = 64,188.24 : x
  2. Step 2: Convert to fraction form
    86,803.44/119,901.24 = 64,188.24/x
  3. Step 3: Cross multiply
    86,803.44x = 119,901.24 × 64,188.24
  4. Step 4: Simplify right side
    86,803.44x = 7,696,249,569.42
  5. Step 5: Solve for x
    x = 7,696,249,569.42/86,803.44
  6. Step 6: Final answer
    x = 88,662.96

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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.