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Finding the Fourth Proportional to 210,579, 315,923.22 and 62,835

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Solution

The fourth proportional to 210,579, 315,923.22 and 62,835 is: 94,268.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,579 : 315,923.22 = 62,835 : x
  2. Step 2: Convert to fraction form
    210,579/315,923.22 = 62,835/x
  3. Step 3: Cross multiply
    210,579x = 315,923.22 × 62,835
  4. Step 4: Simplify right side
    210,579x = 19,851,035,528.70
  5. Step 5: Solve for x
    x = 19,851,035,528.70/210,579
  6. Step 6: Final answer
    x = 94,268.83

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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.