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Finding the Fourth Proportional to 233,888.65, 350,235.19 and 128,591.89

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Solution

The fourth proportional to 233,888.65, 350,235.19 and 128,591.89 is: 192,559.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,888.65 : 350,235.19 = 128,591.89 : x
  2. Step 2: Convert to fraction form
    233,888.65/350,235.19 = 128,591.89/x
  3. Step 3: Cross multiply
    233,888.65x = 350,235.19 × 128,591.89
  4. Step 4: Simplify right side
    233,888.65x = 45,037,405,026.61
  5. Step 5: Solve for x
    x = 45,037,405,026.61/233,888.65
  6. Step 6: Final answer
    x = 192,559.17

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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.