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Finding the Fourth Proportional to 145,808.49, 218,712.72 and 35,000.49

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Solution

The fourth proportional to 145,808.49, 218,712.72 and 35,000.49 is: 52,500.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,808.49 : 218,712.72 = 35,000.49 : x
  2. Step 2: Convert to fraction form
    145,808.49/218,712.72 = 35,000.49/x
  3. Step 3: Cross multiply
    145,808.49x = 218,712.72 × 35,000.49
  4. Step 4: Simplify right side
    145,808.49x = 7,655,052,369.23
  5. Step 5: Solve for x
    x = 7,655,052,369.23/145,808.49
  6. Step 6: Final answer
    x = 52,500.73

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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.