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Finding the Fourth Proportional to 152,570.94, 210,553.01 and 84,583.86

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Solution

The fourth proportional to 152,570.94, 210,553.01 and 84,583.86 is: 116,728.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,570.94 : 210,553.01 = 84,583.86 : x
  2. Step 2: Convert to fraction form
    152,570.94/210,553.01 = 84,583.86/x
  3. Step 3: Cross multiply
    152,570.94x = 210,553.01 × 84,583.86
  4. Step 4: Simplify right side
    152,570.94x = 17,809,386,320.42
  5. Step 5: Solve for x
    x = 17,809,386,320.42/152,570.94
  6. Step 6: Final answer
    x = 116,728.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.