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Finding the Fourth Proportional to 113,774.50, 157,007.70 and 62,787.70

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Solution

The fourth proportional to 113,774.50, 157,007.70 and 62,787.70 is: 86,646.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,774.50 : 157,007.70 = 62,787.70 : x
  2. Step 2: Convert to fraction form
    113,774.50/157,007.70 = 62,787.70/x
  3. Step 3: Cross multiply
    113,774.50x = 157,007.70 × 62,787.70
  4. Step 4: Simplify right side
    113,774.50x = 9,858,152,365.29
  5. Step 5: Solve for x
    x = 9,858,152,365.29/113,774.50
  6. Step 6: Final answer
    x = 86,646.41

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1.5x scale

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.