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Finding the Fourth Proportional to 179,653.60, 269,480.40 and 61,307.20

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Solution

The fourth proportional to 179,653.60, 269,480.40 and 61,307.20 is: 91,960.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,653.60 : 269,480.40 = 61,307.20 : x
  2. Step 2: Convert to fraction form
    179,653.60/269,480.40 = 61,307.20/x
  3. Step 3: Cross multiply
    179,653.60x = 269,480.40 × 61,307.20
  4. Step 4: Simplify right side
    179,653.60x = 16,521,088,778.88
  5. Step 5: Solve for x
    x = 16,521,088,778.88/179,653.60
  6. Step 6: Final answer
    x = 91,960.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.