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Finding the Fourth Proportional to 223,955.52, 335,931.18 and 90,804.13

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Solution

The fourth proportional to 223,955.52, 335,931.18 and 90,804.13 is: 136,205.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,955.52 : 335,931.18 = 90,804.13 : x
  2. Step 2: Convert to fraction form
    223,955.52/335,931.18 = 90,804.13/x
  3. Step 3: Cross multiply
    223,955.52x = 335,931.18 × 90,804.13
  4. Step 4: Simplify right side
    223,955.52x = 30,503,938,539.77
  5. Step 5: Solve for x
    x = 30,503,938,539.77/223,955.52
  6. Step 6: Final answer
    x = 136,205.34

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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.