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Finding the Fourth Proportional to 86,670.84, 129,899.93 and 49,262.25

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Solution

The fourth proportional to 86,670.84, 129,899.93 and 49,262.25 is: 73,832.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,670.84 : 129,899.93 = 49,262.25 : x
  2. Step 2: Convert to fraction form
    86,670.84/129,899.93 = 49,262.25/x
  3. Step 3: Cross multiply
    86,670.84x = 129,899.93 × 49,262.25
  4. Step 4: Simplify right side
    86,670.84x = 6,399,162,580.33
  5. Step 5: Solve for x
    x = 6,399,162,580.33/86,670.84
  6. Step 6: Final answer
    x = 73,832.94

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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.