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Finding the Fourth Proportional to 113,877.70, 157,152.05 and 62,889.01

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Solution

The fourth proportional to 113,877.70, 157,152.05 and 62,889.01 is: 86,787.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,877.70 : 157,152.05 = 62,889.01 : x
  2. Step 2: Convert to fraction form
    113,877.70/157,152.05 = 62,889.01/x
  3. Step 3: Cross multiply
    113,877.70x = 157,152.05 × 62,889.01
  4. Step 4: Simplify right side
    113,877.70x = 9,883,136,372.48
  5. Step 5: Solve for x
    x = 9,883,136,372.48/113,877.70
  6. Step 6: Final answer
    x = 86,787.29

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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.