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Finding the Fourth Proportional to 208,725.90, 292,806.75 and 208,725.90

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Solution

The fourth proportional to 208,725.90, 292,806.75 and 208,725.90 is: 292,806.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,725.90 : 292,806.75 = 208,725.90 : x
  2. Step 2: Convert to fraction form
    208,725.90/292,806.75 = 208,725.90/x
  3. Step 3: Cross multiply
    208,725.90x = 292,806.75 × 208,725.90
  4. Step 4: Simplify right side
    208,725.90x = 61,116,352,419.83
  5. Step 5: Solve for x
    x = 61,116,352,419.83/208,725.90
  6. Step 6: Final answer
    x = 292,806.75

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.