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Finding the Fourth Proportional to 227,638.23, 314,124.62 and 125,647.32

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Solution

The fourth proportional to 227,638.23, 314,124.62 and 125,647.32 is: 173,384.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,638.23 : 314,124.62 = 125,647.32 : x
  2. Step 2: Convert to fraction form
    227,638.23/314,124.62 = 125,647.32/x
  3. Step 3: Cross multiply
    227,638.23x = 314,124.62 × 125,647.32
  4. Step 4: Simplify right side
    227,638.23x = 39,468,916,020.78
  5. Step 5: Solve for x
    x = 39,468,916,020.78/227,638.23
  6. Step 6: Final answer
    x = 173,384.39

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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.