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Finding the Fourth Proportional to 260,070.75, 358,897.64 and 140,838.75

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Solution

The fourth proportional to 260,070.75, 358,897.64 and 140,838.75 is: 194,357.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,070.75 : 358,897.64 = 140,838.75 : x
  2. Step 2: Convert to fraction form
    260,070.75/358,897.64 = 140,838.75/x
  3. Step 3: Cross multiply
    260,070.75x = 358,897.64 × 140,838.75
  4. Step 4: Simplify right side
    260,070.75x = 50,546,694,291.36
  5. Step 5: Solve for x
    x = 50,546,694,291.36/260,070.75
  6. Step 6: Final answer
    x = 194,357.48

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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.