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Finding the Fourth Proportional to 251,525.61, 347,111.79 and 136,810.80

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Solution

The fourth proportional to 251,525.61, 347,111.79 and 136,810.80 is: 188,802.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,525.61 : 347,111.79 = 136,810.80 : x
  2. Step 2: Convert to fraction form
    251,525.61/347,111.79 = 136,810.80/x
  3. Step 3: Cross multiply
    251,525.61x = 347,111.79 × 136,810.80
  4. Step 4: Simplify right side
    251,525.61x = 47,488,641,679.33
  5. Step 5: Solve for x
    x = 47,488,641,679.33/251,525.61
  6. Step 6: Final answer
    x = 188,802.41

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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.