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Finding the Fourth Proportional to 152,655.51, 210,663.21 and 84,672.62

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Solution

The fourth proportional to 152,655.51, 210,663.21 and 84,672.62 is: 116,847.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,655.51 : 210,663.21 = 84,672.62 : x
  2. Step 2: Convert to fraction form
    152,655.51/210,663.21 = 84,672.62/x
  3. Step 3: Cross multiply
    152,655.51x = 210,663.21 × 84,672.62
  4. Step 4: Simplify right side
    152,655.51x = 17,837,404,874.99
  5. Step 5: Solve for x
    x = 17,837,404,874.99/152,655.51
  6. Step 6: Final answer
    x = 116,847.44

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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.