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Finding the Fourth Proportional to 163,873.70, 245,810.55 and 141,323.30

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Solution

The fourth proportional to 163,873.70, 245,810.55 and 141,323.30 is: 211,984.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,873.70 : 245,810.55 = 141,323.30 : x
  2. Step 2: Convert to fraction form
    163,873.70/245,810.55 = 141,323.30/x
  3. Step 3: Cross multiply
    163,873.70x = 245,810.55 × 141,323.30
  4. Step 4: Simplify right side
    163,873.70x = 34,738,758,100.82
  5. Step 5: Solve for x
    x = 34,738,758,100.82/163,873.70
  6. Step 6: Final answer
    x = 211,984.95

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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.