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Finding the Fourth Proportional to 275,588.47, 380,353.64 and 168,220.74

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Solution

The fourth proportional to 275,588.47, 380,353.64 and 168,220.74 is: 232,169.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,588.47 : 380,353.64 = 168,220.74 : x
  2. Step 2: Convert to fraction form
    275,588.47/380,353.64 = 168,220.74/x
  3. Step 3: Cross multiply
    275,588.47x = 380,353.64 × 168,220.74
  4. Step 4: Simplify right side
    275,588.47x = 63,983,370,782.49
  5. Step 5: Solve for x
    x = 63,983,370,782.49/275,588.47
  6. Step 6: Final answer
    x = 232,169.98

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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.