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Finding the Fourth Proportional to 147,399.60, 221,099.40 and 58,653.88

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Solution

The fourth proportional to 147,399.60, 221,099.40 and 58,653.88 is: 87,980.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,399.60 : 221,099.40 = 58,653.88 : x
  2. Step 2: Convert to fraction form
    147,399.60/221,099.40 = 58,653.88/x
  3. Step 3: Cross multiply
    147,399.60x = 221,099.40 × 58,653.88
  4. Step 4: Simplify right side
    147,399.60x = 12,968,337,675.67
  5. Step 5: Solve for x
    x = 12,968,337,675.67/147,399.60
  6. Step 6: Final answer
    x = 87,980.82

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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.