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Finding the Fourth Proportional to 145,953.90, 218,940.09 and 61,702.97

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Solution

The fourth proportional to 145,953.90, 218,940.09 and 61,702.97 is: 92,558.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,953.90 : 218,940.09 = 61,702.97 : x
  2. Step 2: Convert to fraction form
    145,953.90/218,940.09 = 61,702.97/x
  3. Step 3: Cross multiply
    145,953.90x = 218,940.09 × 61,702.97
  4. Step 4: Simplify right side
    145,953.90x = 13,509,254,352.42
  5. Step 5: Solve for x
    x = 13,509,254,352.42/145,953.90
  6. Step 6: Final answer
    x = 92,558.37

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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.