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Finding the Fourth Proportional to 92,058.72, 137,992.32 and 62,478.96

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Solution

The fourth proportional to 92,058.72, 137,992.32 and 62,478.96 is: 93,653.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,058.72 : 137,992.32 = 62,478.96 : x
  2. Step 2: Convert to fraction form
    92,058.72/137,992.32 = 62,478.96/x
  3. Step 3: Cross multiply
    92,058.72x = 137,992.32 × 62,478.96
  4. Step 4: Simplify right side
    92,058.72x = 8,621,616,641.59
  5. Step 5: Solve for x
    x = 8,621,616,641.59/92,058.72
  6. Step 6: Final answer
    x = 93,653.45

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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.