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Finding the Fourth Proportional to 152,444.48, 210,379.68 and 85,376.96

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Solution

The fourth proportional to 152,444.48, 210,379.68 and 85,376.96 is: 117,823.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,444.48 : 210,379.68 = 85,376.96 : x
  2. Step 2: Convert to fraction form
    152,444.48/210,379.68 = 85,376.96/x
  3. Step 3: Cross multiply
    152,444.48x = 210,379.68 × 85,376.96
  4. Step 4: Simplify right side
    152,444.48x = 17,961,577,524.17
  5. Step 5: Solve for x
    x = 17,961,577,524.17/152,444.48
  6. Step 6: Final answer
    x = 117,823.73

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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.