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Finding the Fourth Proportional to 320,143.71, 441,881.31 and 184,191.58

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Solution

The fourth proportional to 320,143.71, 441,881.31 and 184,191.58 is: 254,232.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,143.71 : 441,881.31 = 184,191.58 : x
  2. Step 2: Convert to fraction form
    320,143.71/441,881.31 = 184,191.58/x
  3. Step 3: Cross multiply
    320,143.71x = 441,881.31 × 184,191.58
  4. Step 4: Simplify right side
    320,143.71x = 81,390,816,661.37
  5. Step 5: Solve for x
    x = 81,390,816,661.37/320,143.71
  6. Step 6: Final answer
    x = 254,232.13

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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.