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Finding the Fourth Proportional to 368,657.68, 552,986.24 and 210,775.38

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Solution

The fourth proportional to 368,657.68, 552,986.24 and 210,775.38 is: 316,162.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,657.68 : 552,986.24 = 210,775.38 : x
  2. Step 2: Convert to fraction form
    368,657.68/552,986.24 = 210,775.38/x
  3. Step 3: Cross multiply
    368,657.68x = 552,986.24 × 210,775.38
  4. Step 4: Simplify right side
    368,657.68x = 116,555,884,870.77
  5. Step 5: Solve for x
    x = 116,555,884,870.77/368,657.68
  6. Step 6: Final answer
    x = 316,162.91

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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.