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Finding the Fourth Proportional to 98,231.70, 147,224.28 and 42,005.67

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Solution

The fourth proportional to 98,231.70, 147,224.28 and 42,005.67 is: 62,955.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,231.70 : 147,224.28 = 42,005.67 : x
  2. Step 2: Convert to fraction form
    98,231.70/147,224.28 = 42,005.67/x
  3. Step 3: Cross multiply
    98,231.70x = 147,224.28 × 42,005.67
  4. Step 4: Simplify right side
    98,231.70x = 6,184,254,521.67
  5. Step 5: Solve for x
    x = 6,184,254,521.67/98,231.70
  6. Step 6: Final answer
    x = 62,955.79

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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.