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Finding the Fourth Proportional to 210,803.64, 316,251.63 and 61,050.03

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Solution

The fourth proportional to 210,803.64, 316,251.63 and 61,050.03 is: 91,588.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,803.64 : 316,251.63 = 61,050.03 : x
  2. Step 2: Convert to fraction form
    210,803.64/316,251.63 = 61,050.03/x
  3. Step 3: Cross multiply
    210,803.64x = 316,251.63 × 61,050.03
  4. Step 4: Simplify right side
    210,803.64x = 19,307,171,499.05
  5. Step 5: Solve for x
    x = 19,307,171,499.05/210,803.64
  6. Step 6: Final answer
    x = 91,588.42

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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.