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Finding the Fourth Proportional to 346,990.96, 478,851.24 and 203,752.72

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Solution

The fourth proportional to 346,990.96, 478,851.24 and 203,752.72 is: 281,180.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,990.96 : 478,851.24 = 203,752.72 : x
  2. Step 2: Convert to fraction form
    346,990.96/478,851.24 = 203,752.72/x
  3. Step 3: Cross multiply
    346,990.96x = 478,851.24 × 203,752.72
  4. Step 4: Simplify right side
    346,990.96x = 97,567,242,625.37
  5. Step 5: Solve for x
    x = 97,567,242,625.37/346,990.96
  6. Step 6: Final answer
    x = 281,180.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.