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Finding the Fourth Proportional to 249,928.50, 345,059.28 and 154,489.44

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Solution

The fourth proportional to 249,928.50, 345,059.28 and 154,489.44 is: 213,293.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,928.50 : 345,059.28 = 154,489.44 : x
  2. Step 2: Convert to fraction form
    249,928.50/345,059.28 = 154,489.44/x
  3. Step 3: Cross multiply
    249,928.50x = 345,059.28 × 154,489.44
  4. Step 4: Simplify right side
    249,928.50x = 53,308,014,934.00
  5. Step 5: Solve for x
    x = 53,308,014,934.00/249,928.50
  6. Step 6: Final answer
    x = 213,293.06

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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.