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Finding the Fourth Proportional to 92,670.98, 138,956.50 and 49,999.28

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Solution

The fourth proportional to 92,670.98, 138,956.50 and 49,999.28 is: 74,971.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,670.98 : 138,956.50 = 49,999.28 : x
  2. Step 2: Convert to fraction form
    92,670.98/138,956.50 = 49,999.28/x
  3. Step 3: Cross multiply
    92,670.98x = 138,956.50 × 49,999.28
  4. Step 4: Simplify right side
    92,670.98x = 6,947,724,951.32
  5. Step 5: Solve for x
    x = 6,947,724,951.32/92,670.98
  6. Step 6: Final answer
    x = 74,971.96

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1.5x scale

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.