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Finding the Fourth Proportional to 133,626.63, 184,407.72 and 76,264.80

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Solution

The fourth proportional to 133,626.63, 184,407.72 and 76,264.80 is: 105,247.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,626.63 : 184,407.72 = 76,264.80 : x
  2. Step 2: Convert to fraction form
    133,626.63/184,407.72 = 76,264.80/x
  3. Step 3: Cross multiply
    133,626.63x = 184,407.72 × 76,264.80
  4. Step 4: Simplify right side
    133,626.63x = 14,063,817,133.43
  5. Step 5: Solve for x
    x = 14,063,817,133.43/133,626.63
  6. Step 6: Final answer
    x = 105,247.12

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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.