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Finding the Fourth Proportional to 292,739.06, 439,108.59 and 71,123.06

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Solution

The fourth proportional to 292,739.06, 439,108.59 and 71,123.06 is: 106,684.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,739.06 : 439,108.59 = 71,123.06 : x
  2. Step 2: Convert to fraction form
    292,739.06/439,108.59 = 71,123.06/x
  3. Step 3: Cross multiply
    292,739.06x = 439,108.59 × 71,123.06
  4. Step 4: Simplify right side
    292,739.06x = 31,230,747,957.57
  5. Step 5: Solve for x
    x = 31,230,747,957.57/292,739.06
  6. Step 6: Final answer
    x = 106,684.59

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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.