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Finding the Fourth Proportional to 260,667.21, 359,703.34 and 145,926.48

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Solution

The fourth proportional to 260,667.21, 359,703.34 and 145,926.48 is: 201,368.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,667.21 : 359,703.34 = 145,926.48 : x
  2. Step 2: Convert to fraction form
    260,667.21/359,703.34 = 145,926.48/x
  3. Step 3: Cross multiply
    260,667.21x = 359,703.34 × 145,926.48
  4. Step 4: Simplify right side
    260,667.21x = 52,490,242,250.44
  5. Step 5: Solve for x
    x = 52,490,242,250.44/260,667.21
  6. Step 6: Final answer
    x = 201,368.80

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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.