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Finding the Fourth Proportional to 219,905.70, 329,858.55 and 167,417.70

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Solution

The fourth proportional to 219,905.70, 329,858.55 and 167,417.70 is: 251,126.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,905.70 : 329,858.55 = 167,417.70 : x
  2. Step 2: Convert to fraction form
    219,905.70/329,858.55 = 167,417.70/x
  3. Step 3: Cross multiply
    219,905.70x = 329,858.55 × 167,417.70
  4. Step 4: Simplify right side
    219,905.70x = 55,224,159,766.34
  5. Step 5: Solve for x
    x = 55,224,159,766.34/219,905.70
  6. Step 6: Final answer
    x = 251,126.55

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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.