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Finding the Fourth Proportional to 127,707.62, 191,586.56 and 52,787.48

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Solution

The fourth proportional to 127,707.62, 191,586.56 and 52,787.48 is: 79,191.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,707.62 : 191,586.56 = 52,787.48 : x
  2. Step 2: Convert to fraction form
    127,707.62/191,586.56 = 52,787.48/x
  3. Step 3: Cross multiply
    127,707.62x = 191,586.56 × 52,787.48
  4. Step 4: Simplify right side
    127,707.62x = 10,113,370,482.40
  5. Step 5: Solve for x
    x = 10,113,370,482.40/127,707.62
  6. Step 6: Final answer
    x = 79,191.60

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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.