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Finding the Fourth Proportional to 168,455.76, 232,164.47 and 139,623.58

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Solution

The fourth proportional to 168,455.76, 232,164.47 and 139,623.58 is: 192,428.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,455.76 : 232,164.47 = 139,623.58 : x
  2. Step 2: Convert to fraction form
    168,455.76/232,164.47 = 139,623.58/x
  3. Step 3: Cross multiply
    168,455.76x = 232,164.47 × 139,623.58
  4. Step 4: Simplify right side
    168,455.76x = 32,415,632,940.32
  5. Step 5: Solve for x
    x = 32,415,632,940.32/168,455.76
  6. Step 6: Final answer
    x = 192,428.17

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1.5x scale

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.