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Finding the Fourth Proportional to 163,900.80, 245,851.20 and 144,655.20

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Solution

The fourth proportional to 163,900.80, 245,851.20 and 144,655.20 is: 216,982.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,900.80 : 245,851.20 = 144,655.20 : x
  2. Step 2: Convert to fraction form
    163,900.80/245,851.20 = 144,655.20/x
  3. Step 3: Cross multiply
    163,900.80x = 245,851.20 × 144,655.20
  4. Step 4: Simplify right side
    163,900.80x = 35,563,654,506.24
  5. Step 5: Solve for x
    x = 35,563,654,506.24/163,900.80
  6. Step 6: Final answer
    x = 216,982.80

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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.