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Finding the Fourth Proportional to 146,717.20, 220,075.80 and 136,802.80

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Solution

The fourth proportional to 146,717.20, 220,075.80 and 136,802.80 is: 205,204.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,717.20 : 220,075.80 = 136,802.80 : x
  2. Step 2: Convert to fraction form
    146,717.20/220,075.80 = 136,802.80/x
  3. Step 3: Cross multiply
    146,717.20x = 220,075.80 × 136,802.80
  4. Step 4: Simplify right side
    146,717.20x = 30,106,985,652.24
  5. Step 5: Solve for x
    x = 30,106,985,652.24/146,717.20
  6. Step 6: Final answer
    x = 205,204.20

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1.5x scale

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.