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Finding the Fourth Proportional to 152,647.56, 210,664.40 and 84,671.01

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Solution

The fourth proportional to 152,647.56, 210,664.40 and 84,671.01 is: 116,851.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,647.56 : 210,664.40 = 84,671.01 : x
  2. Step 2: Convert to fraction form
    152,647.56/210,664.40 = 84,671.01/x
  3. Step 3: Cross multiply
    152,647.56x = 210,664.40 × 84,671.01
  4. Step 4: Simplify right side
    152,647.56x = 17,837,167,095.69
  5. Step 5: Solve for x
    x = 17,837,167,095.69/152,647.56
  6. Step 6: Final answer
    x = 116,851.96

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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.