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Finding the Fourth Proportional to 357,443.30, 536,386.54 and 207,754.08

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Solution

The fourth proportional to 357,443.30, 536,386.54 and 207,754.08 is: 311,759.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,443.30 : 536,386.54 = 207,754.08 : x
  2. Step 2: Convert to fraction form
    357,443.30/536,386.54 = 207,754.08/x
  3. Step 3: Cross multiply
    357,443.30x = 536,386.54 × 207,754.08
  4. Step 4: Simplify right side
    357,443.30x = 111,436,493,017.96
  5. Step 5: Solve for x
    x = 111,436,493,017.96/357,443.30
  6. Step 6: Final answer
    x = 311,759.92

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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.