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Finding the Fourth Proportional to 292,467.85, 438,717.35 and 92,803.86

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Solution

The fourth proportional to 292,467.85, 438,717.35 and 92,803.86 is: 139,210.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,467.85 : 438,717.35 = 92,803.86 : x
  2. Step 2: Convert to fraction form
    292,467.85/438,717.35 = 92,803.86/x
  3. Step 3: Cross multiply
    292,467.85x = 438,717.35 × 92,803.86
  4. Step 4: Simplify right side
    292,467.85x = 40,714,663,760.98
  5. Step 5: Solve for x
    x = 40,714,663,760.98/292,467.85
  6. Step 6: Final answer
    x = 139,210.73

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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.