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Finding the Fourth Proportional to 98,679, 148,040.36 and 46,059.76

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Solution

The fourth proportional to 98,679, 148,040.36 and 46,059.76 is: 69,099.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,679 : 148,040.36 = 46,059.76 : x
  2. Step 2: Convert to fraction form
    98,679/148,040.36 = 46,059.76/x
  3. Step 3: Cross multiply
    98,679x = 148,040.36 × 46,059.76
  4. Step 4: Simplify right side
    98,679x = 6,818,703,451.91
  5. Step 5: Solve for x
    x = 6,818,703,451.91/98,679
  6. Step 6: Final answer
    x = 69,099.84

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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.