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Finding the Fourth Proportional to 133,080.92, 183,643.84 and 76,492.30

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Solution

The fourth proportional to 133,080.92, 183,643.84 and 76,492.30 is: 105,554.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,080.92 : 183,643.84 = 76,492.30 : x
  2. Step 2: Convert to fraction form
    133,080.92/183,643.84 = 76,492.30/x
  3. Step 3: Cross multiply
    133,080.92x = 183,643.84 × 76,492.30
  4. Step 4: Simplify right side
    133,080.92x = 14,047,339,702.43
  5. Step 5: Solve for x
    x = 14,047,339,702.43/133,080.92
  6. Step 6: Final answer
    x = 105,554.87

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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.