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Finding the Fourth Proportional to 179,885.76, 248,271.52 and 104,478

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Solution

The fourth proportional to 179,885.76, 248,271.52 and 104,478 is: 144,196.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,885.76 : 248,271.52 = 104,478 : x
  2. Step 2: Convert to fraction form
    179,885.76/248,271.52 = 104,478/x
  3. Step 3: Cross multiply
    179,885.76x = 248,271.52 × 104,478
  4. Step 4: Simplify right side
    179,885.76x = 25,938,911,866.56
  5. Step 5: Solve for x
    x = 25,938,911,866.56/179,885.76
  6. Step 6: Final answer
    x = 144,196.58

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Why These Related Problems?

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