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Finding the Fourth Proportional to 193,881.80, 290,822.70 and 127,526.60

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Solution

The fourth proportional to 193,881.80, 290,822.70 and 127,526.60 is: 191,289.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,881.80 : 290,822.70 = 127,526.60 : x
  2. Step 2: Convert to fraction form
    193,881.80/290,822.70 = 127,526.60/x
  3. Step 3: Cross multiply
    193,881.80x = 290,822.70 × 127,526.60
  4. Step 4: Simplify right side
    193,881.80x = 37,087,630,133.82
  5. Step 5: Solve for x
    x = 37,087,630,133.82/193,881.80
  6. Step 6: Final answer
    x = 191,289.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.