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Finding the Fourth Proportional to 222,888.95, 307,585.71 and 120,914.47

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Solution

The fourth proportional to 222,888.95, 307,585.71 and 120,914.47 is: 166,861.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,888.95 : 307,585.71 = 120,914.47 : x
  2. Step 2: Convert to fraction form
    222,888.95/307,585.71 = 120,914.47/x
  3. Step 3: Cross multiply
    222,888.95x = 307,585.71 × 120,914.47
  4. Step 4: Simplify right side
    222,888.95x = 37,191,562,335.26
  5. Step 5: Solve for x
    x = 37,191,562,335.26/222,888.95
  6. Step 6: Final answer
    x = 166,861.40

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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.