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Finding the Fourth Proportional to 113,054.68, 169,423.64 and 84,956.79

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Solution

The fourth proportional to 113,054.68, 169,423.64 and 84,956.79 is: 127,316.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,054.68 : 169,423.64 = 84,956.79 : x
  2. Step 2: Convert to fraction form
    113,054.68/169,423.64 = 84,956.79/x
  3. Step 3: Cross multiply
    113,054.68x = 169,423.64 × 84,956.79
  4. Step 4: Simplify right side
    113,054.68x = 14,393,688,604.52
  5. Step 5: Solve for x
    x = 14,393,688,604.52/113,054.68
  6. Step 6: Final answer
    x = 127,316.17

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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.