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Finding the Fourth Proportional to 260,901, 360,043.38 and 141,669

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Solution

The fourth proportional to 260,901, 360,043.38 and 141,669 is: 195,503.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,901 : 360,043.38 = 141,669 : x
  2. Step 2: Convert to fraction form
    260,901/360,043.38 = 141,669/x
  3. Step 3: Cross multiply
    260,901x = 360,043.38 × 141,669
  4. Step 4: Simplify right side
    260,901x = 51,006,985,601.22
  5. Step 5: Solve for x
    x = 51,006,985,601.22/260,901
  6. Step 6: Final answer
    x = 195,503.22

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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.