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Finding the Fourth Proportional to 235,759.08, 353,603.52 and 77,988.36

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Solution

The fourth proportional to 235,759.08, 353,603.52 and 77,988.36 is: 116,970.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,759.08 : 353,603.52 = 77,988.36 : x
  2. Step 2: Convert to fraction form
    235,759.08/353,603.52 = 77,988.36/x
  3. Step 3: Cross multiply
    235,759.08x = 353,603.52 × 77,988.36
  4. Step 4: Simplify right side
    235,759.08x = 27,576,958,615.03
  5. Step 5: Solve for x
    x = 27,576,958,615.03/235,759.08
  6. Step 6: Final answer
    x = 116,970.93

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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.