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Finding the Fourth Proportional to 114,783.84, 158,399.10 and 66,382.11

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Solution

The fourth proportional to 114,783.84, 158,399.10 and 66,382.11 is: 91,605.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,783.84 : 158,399.10 = 66,382.11 : x
  2. Step 2: Convert to fraction form
    114,783.84/158,399.10 = 66,382.11/x
  3. Step 3: Cross multiply
    114,783.84x = 158,399.10 × 66,382.11
  4. Step 4: Simplify right side
    114,783.84x = 10,514,866,480.10
  5. Step 5: Solve for x
    x = 10,514,866,480.10/114,783.84
  6. Step 6: Final answer
    x = 91,605.81

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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.