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Finding the Fourth Proportional to 219,675.02, 329,512.53 and 79,400.84

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Solution

The fourth proportional to 219,675.02, 329,512.53 and 79,400.84 is: 119,101.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,675.02 : 329,512.53 = 79,400.84 : x
  2. Step 2: Convert to fraction form
    219,675.02/329,512.53 = 79,400.84/x
  3. Step 3: Cross multiply
    219,675.02x = 329,512.53 × 79,400.84
  4. Step 4: Simplify right side
    219,675.02x = 26,163,570,024.96
  5. Step 5: Solve for x
    x = 26,163,570,024.96/219,675.02
  6. Step 6: Final answer
    x = 119,101.26

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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.