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Finding the Fourth Proportional to 169,807.80, 254,106.90 and 147,862.20

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Solution

The fourth proportional to 169,807.80, 254,106.90 and 147,862.20 is: 221,266.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,807.80 : 254,106.90 = 147,862.20 : x
  2. Step 2: Convert to fraction form
    169,807.80/254,106.90 = 147,862.20/x
  3. Step 3: Cross multiply
    169,807.80x = 254,106.90 × 147,862.20
  4. Step 4: Simplify right side
    169,807.80x = 37,572,805,269.18
  5. Step 5: Solve for x
    x = 37,572,805,269.18/169,807.80
  6. Step 6: Final answer
    x = 221,266.66

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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.