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Finding the Fourth Proportional to 219,747.60, 330,010.20 and 169,948.80

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Solution

The fourth proportional to 219,747.60, 330,010.20 and 169,948.80 is: 255,223.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,747.60 : 330,010.20 = 169,948.80 : x
  2. Step 2: Convert to fraction form
    219,747.60/330,010.20 = 169,948.80/x
  3. Step 3: Cross multiply
    219,747.60x = 330,010.20 × 169,948.80
  4. Step 4: Simplify right side
    219,747.60x = 56,084,837,477.76
  5. Step 5: Solve for x
    x = 56,084,837,477.76/219,747.60
  6. Step 6: Final answer
    x = 255,223.89

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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.