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Finding the Fourth Proportional to 228,021.70, 342,032.55 and 61,809.70

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Solution

The fourth proportional to 228,021.70, 342,032.55 and 61,809.70 is: 92,714.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,021.70 : 342,032.55 = 61,809.70 : x
  2. Step 2: Convert to fraction form
    228,021.70/342,032.55 = 61,809.70/x
  3. Step 3: Cross multiply
    228,021.70x = 342,032.55 × 61,809.70
  4. Step 4: Simplify right side
    228,021.70x = 21,140,929,305.74
  5. Step 5: Solve for x
    x = 21,140,929,305.74/228,021.70
  6. Step 6: Final answer
    x = 92,714.55

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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.