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Finding the Fourth Proportional to 152,637.41, 210,650.36 and 84,660.86

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Solution

The fourth proportional to 152,637.41, 210,650.36 and 84,660.86 is: 116,837.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,637.41 : 210,650.36 = 84,660.86 : x
  2. Step 2: Convert to fraction form
    152,637.41/210,650.36 = 84,660.86/x
  3. Step 3: Cross multiply
    152,637.41x = 210,650.36 × 84,660.86
  4. Step 4: Simplify right side
    152,637.41x = 17,833,840,740.23
  5. Step 5: Solve for x
    x = 17,833,840,740.23/152,637.41
  6. Step 6: Final answer
    x = 116,837.94

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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.