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Finding the Fourth Proportional to 233,207.35, 349,811.03 and 128,690.62

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Solution

The fourth proportional to 233,207.35, 349,811.03 and 128,690.62 is: 193,035.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,207.35 : 349,811.03 = 128,690.62 : x
  2. Step 2: Convert to fraction form
    233,207.35/349,811.03 = 128,690.62/x
  3. Step 3: Cross multiply
    233,207.35x = 349,811.03 × 128,690.62
  4. Step 4: Simplify right side
    233,207.35x = 45,017,398,333.54
  5. Step 5: Solve for x
    x = 45,017,398,333.54/233,207.35
  6. Step 6: Final answer
    x = 193,035.93

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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.