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Finding the Fourth Proportional to 153,441.68, 211,741.27 and 84,528.88

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Solution

The fourth proportional to 153,441.68, 211,741.27 and 84,528.88 is: 116,645.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,441.68 : 211,741.27 = 84,528.88 : x
  2. Step 2: Convert to fraction form
    153,441.68/211,741.27 = 84,528.88/x
  3. Step 3: Cross multiply
    153,441.68x = 211,741.27 × 84,528.88
  4. Step 4: Simplify right side
    153,441.68x = 17,898,252,402.88
  5. Step 5: Solve for x
    x = 17,898,252,402.88/153,441.68
  6. Step 6: Final answer
    x = 116,645.31

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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.