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Finding the Fourth Proportional to 135,674.83, 187,242.76 and 75,264.93

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Solution

The fourth proportional to 135,674.83, 187,242.76 and 75,264.93 is: 103,871.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,674.83 : 187,242.76 = 75,264.93 : x
  2. Step 2: Convert to fraction form
    135,674.83/187,242.76 = 75,264.93/x
  3. Step 3: Cross multiply
    135,674.83x = 187,242.76 × 75,264.93
  4. Step 4: Simplify right side
    135,674.83x = 14,092,812,895.12
  5. Step 5: Solve for x
    x = 14,092,812,895.12/135,674.83
  6. Step 6: Final answer
    x = 103,871.98

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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.