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Finding the Fourth Proportional to 130,463.39, 180,036.44 and 76,751.87

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Solution

The fourth proportional to 130,463.39, 180,036.44 and 76,751.87 is: 105,915.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,463.39 : 180,036.44 = 76,751.87 : x
  2. Step 2: Convert to fraction form
    130,463.39/180,036.44 = 76,751.87/x
  3. Step 3: Cross multiply
    130,463.39x = 180,036.44 × 76,751.87
  4. Step 4: Simplify right side
    130,463.39x = 13,818,133,438.14
  5. Step 5: Solve for x
    x = 13,818,133,438.14/130,463.39
  6. Step 6: Final answer
    x = 105,915.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.