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Finding the Fourth Proportional to 176,323.66, 243,492.72 and 122,755.15

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Solution

The fourth proportional to 176,323.66, 243,492.72 and 122,755.15 is: 169,517.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,323.66 : 243,492.72 = 122,755.15 : x
  2. Step 2: Convert to fraction form
    176,323.66/243,492.72 = 122,755.15/x
  3. Step 3: Cross multiply
    176,323.66x = 243,492.72 × 122,755.15
  4. Step 4: Simplify right side
    176,323.66x = 29,889,985,060.62
  5. Step 5: Solve for x
    x = 29,889,985,060.62/176,323.66
  6. Step 6: Final answer
    x = 169,517.72

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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.