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Finding the Fourth Proportional to 338,808.60, 508,261.23 and 111,055.50

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Solution

The fourth proportional to 338,808.60, 508,261.23 and 111,055.50 is: 166,599.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,808.60 : 508,261.23 = 111,055.50 : x
  2. Step 2: Convert to fraction form
    338,808.60/508,261.23 = 111,055.50/x
  3. Step 3: Cross multiply
    338,808.60x = 508,261.23 × 111,055.50
  4. Step 4: Simplify right side
    338,808.60x = 56,445,205,028.27
  5. Step 5: Solve for x
    x = 56,445,205,028.27/338,808.60
  6. Step 6: Final answer
    x = 166,599.09

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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.