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Finding the Fourth Proportional to 123,086.65, 184,629.98 and 70,459.06

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Solution

The fourth proportional to 123,086.65, 184,629.98 and 70,459.06 is: 105,688.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,086.65 : 184,629.98 = 70,459.06 : x
  2. Step 2: Convert to fraction form
    123,086.65/184,629.98 = 70,459.06/x
  3. Step 3: Cross multiply
    123,086.65x = 184,629.98 × 70,459.06
  4. Step 4: Simplify right side
    123,086.65x = 13,008,854,838.62
  5. Step 5: Solve for x
    x = 13,008,854,838.62/123,086.65
  6. Step 6: Final answer
    x = 105,688.59

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Similar ratio
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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.