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Finding the Fourth Proportional to 153,600.08, 211,957.32 and 84,686.48

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Solution

The fourth proportional to 153,600.08, 211,957.32 and 84,686.48 is: 116,861.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,600.08 : 211,957.32 = 84,686.48 : x
  2. Step 2: Convert to fraction form
    153,600.08/211,957.32 = 84,686.48/x
  3. Step 3: Cross multiply
    153,600.08x = 211,957.32 × 84,686.48
  4. Step 4: Simplify right side
    153,600.08x = 17,949,919,341.03
  5. Step 5: Solve for x
    x = 17,949,919,341.03/153,600.08
  6. Step 6: Final answer
    x = 116,861.39

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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.