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Finding the Fourth Proportional to 235,486.80, 324,980.37 and 134,904.24

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Solution

The fourth proportional to 235,486.80, 324,980.37 and 134,904.24 is: 186,172.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,486.80 : 324,980.37 = 134,904.24 : x
  2. Step 2: Convert to fraction form
    235,486.80/324,980.37 = 134,904.24/x
  3. Step 3: Cross multiply
    235,486.80x = 324,980.37 × 134,904.24
  4. Step 4: Simplify right side
    235,486.80x = 43,841,229,829.77
  5. Step 5: Solve for x
    x = 43,841,229,829.77/235,486.80
  6. Step 6: Final answer
    x = 186,172.77

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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.