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Finding the Fourth Proportional to 219,024.90, 328,537.35 and 149,040.90

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Solution

The fourth proportional to 219,024.90, 328,537.35 and 149,040.90 is: 223,561.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,024.90 : 328,537.35 = 149,040.90 : x
  2. Step 2: Convert to fraction form
    219,024.90/328,537.35 = 149,040.90/x
  3. Step 3: Cross multiply
    219,024.90x = 328,537.35 × 149,040.90
  4. Step 4: Simplify right side
    219,024.90x = 48,965,502,327.62
  5. Step 5: Solve for x
    x = 48,965,502,327.62/219,024.90
  6. Step 6: Final answer
    x = 223,561.35

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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.