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Finding the Fourth Proportional to 145,366.67, 218,049.98 and 45,534.66

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Solution

The fourth proportional to 145,366.67, 218,049.98 and 45,534.66 is: 68,301.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,366.67 : 218,049.98 = 45,534.66 : x
  2. Step 2: Convert to fraction form
    145,366.67/218,049.98 = 45,534.66/x
  3. Step 3: Cross multiply
    145,366.67x = 218,049.98 × 45,534.66
  4. Step 4: Simplify right side
    145,366.67x = 9,928,831,474.63
  5. Step 5: Solve for x
    x = 9,928,831,474.63/145,366.67
  6. Step 6: Final answer
    x = 68,301.98

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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.