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Finding the Fourth Proportional to 186,772.50, 257,746.05 and 119,704.50

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Solution

The fourth proportional to 186,772.50, 257,746.05 and 119,704.50 is: 165,192.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,772.50 : 257,746.05 = 119,704.50 : x
  2. Step 2: Convert to fraction form
    186,772.50/257,746.05 = 119,704.50/x
  3. Step 3: Cross multiply
    186,772.50x = 257,746.05 × 119,704.50
  4. Step 4: Simplify right side
    186,772.50x = 30,853,362,042.23
  5. Step 5: Solve for x
    x = 30,853,362,042.23/186,772.50
  6. Step 6: Final answer
    x = 165,192.21

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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.