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Finding the Fourth Proportional to 114,506.40, 158,009.04 and 66,764.16

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Solution

The fourth proportional to 114,506.40, 158,009.04 and 66,764.16 is: 92,128.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,506.40 : 158,009.04 = 66,764.16 : x
  2. Step 2: Convert to fraction form
    114,506.40/158,009.04 = 66,764.16/x
  3. Step 3: Cross multiply
    114,506.40x = 158,009.04 × 66,764.16
  4. Step 4: Simplify right side
    114,506.40x = 10,549,340,828.01
  5. Step 5: Solve for x
    x = 10,549,340,828.01/114,506.40
  6. Step 6: Final answer
    x = 92,128.83

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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.