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Finding the Fourth Proportional to 145,808.43, 218,712.61 and 35,000.43

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Solution

The fourth proportional to 145,808.43, 218,712.61 and 35,000.43 is: 52,500.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,808.43 : 218,712.61 = 35,000.43 : x
  2. Step 2: Convert to fraction form
    145,808.43/218,712.61 = 35,000.43/x
  3. Step 3: Cross multiply
    145,808.43x = 218,712.61 × 35,000.43
  4. Step 4: Simplify right side
    145,808.43x = 7,655,035,396.42
  5. Step 5: Solve for x
    x = 7,655,035,396.42/145,808.43
  6. Step 6: Final answer
    x = 52,500.64

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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.