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Finding the Fourth Proportional to 173,368.98, 239,266.17 and 105,380.82

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Solution

The fourth proportional to 173,368.98, 239,266.17 and 105,380.82 is: 145,435.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,368.98 : 239,266.17 = 105,380.82 : x
  2. Step 2: Convert to fraction form
    173,368.98/239,266.17 = 105,380.82/x
  3. Step 3: Cross multiply
    173,368.98x = 239,266.17 × 105,380.82
  4. Step 4: Simplify right side
    173,368.98x = 25,214,065,192.86
  5. Step 5: Solve for x
    x = 25,214,065,192.86/173,368.98
  6. Step 6: Final answer
    x = 145,435.85

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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.