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Finding the Fourth Proportional to 233,206.35, 349,809.53 and 128,689.62

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Solution

The fourth proportional to 233,206.35, 349,809.53 and 128,689.62 is: 193,034.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,206.35 : 349,809.53 = 128,689.62 : x
  2. Step 2: Convert to fraction form
    233,206.35/349,809.53 = 128,689.62/x
  3. Step 3: Cross multiply
    233,206.35x = 349,809.53 × 128,689.62
  4. Step 4: Simplify right side
    233,206.35x = 45,016,854,844.63
  5. Step 5: Solve for x
    x = 45,016,854,844.63/233,206.35
  6. Step 6: Final answer
    x = 193,034.43

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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.