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Finding the Fourth Proportional to 104,670.30, 157,041.90 and 45,548.40

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Solution

The fourth proportional to 104,670.30, 157,041.90 and 45,548.40 is: 68,338.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,670.30 : 157,041.90 = 45,548.40 : x
  2. Step 2: Convert to fraction form
    104,670.30/157,041.90 = 45,548.40/x
  3. Step 3: Cross multiply
    104,670.30x = 157,041.90 × 45,548.40
  4. Step 4: Simplify right side
    104,670.30x = 7,153,007,277.96
  5. Step 5: Solve for x
    x = 7,153,007,277.96/104,670.30
  6. Step 6: Final answer
    x = 68,338.46

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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.