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Finding the Fourth Proportional to 292,834.80, 438,960.60 and 134,787.60

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Solution

The fourth proportional to 292,834.80, 438,960.60 and 134,787.60 is: 202,047.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,834.80 : 438,960.60 = 134,787.60 : x
  2. Step 2: Convert to fraction form
    292,834.80/438,960.60 = 134,787.60/x
  3. Step 3: Cross multiply
    292,834.80x = 438,960.60 × 134,787.60
  4. Step 4: Simplify right side
    292,834.80x = 59,166,445,768.56
  5. Step 5: Solve for x
    x = 59,166,445,768.56/292,834.80
  6. Step 6: Final answer
    x = 202,047.18

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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.