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Finding the Fourth Proportional to 260,983, 360,156.90 and 141,751

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Solution

The fourth proportional to 260,983, 360,156.90 and 141,751 is: 195,616.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,983 : 360,156.90 = 141,751 : x
  2. Step 2: Convert to fraction form
    260,983/360,156.90 = 141,751/x
  3. Step 3: Cross multiply
    260,983x = 360,156.90 × 141,751
  4. Step 4: Simplify right side
    260,983x = 51,052,600,731.90
  5. Step 5: Solve for x
    x = 51,052,600,731.90/260,983
  6. Step 6: Final answer
    x = 195,616.58

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1.5x scale

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.