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Finding the Fourth Proportional to 216,484.90, 298,763.79 and 125,840.59

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Solution

The fourth proportional to 216,484.90, 298,763.79 and 125,840.59 is: 173,668.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,484.90 : 298,763.79 = 125,840.59 : x
  2. Step 2: Convert to fraction form
    216,484.90/298,763.79 = 125,840.59/x
  3. Step 3: Cross multiply
    216,484.90x = 298,763.79 × 125,840.59
  4. Step 4: Simplify right side
    216,484.90x = 37,596,611,093.28
  5. Step 5: Solve for x
    x = 37,596,611,093.28/216,484.90
  6. Step 6: Final answer
    x = 173,668.51

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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.