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Finding the Fourth Proportional to 73,460.94, 110,211.45 and 20,870.88

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Solution

The fourth proportional to 73,460.94, 110,211.45 and 20,870.88 is: 31,312.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,460.94 : 110,211.45 = 20,870.88 : x
  2. Step 2: Convert to fraction form
    73,460.94/110,211.45 = 20,870.88/x
  3. Step 3: Cross multiply
    73,460.94x = 110,211.45 × 20,870.88
  4. Step 4: Simplify right side
    73,460.94x = 2,300,209,947.58
  5. Step 5: Solve for x
    x = 2,300,209,947.58/73,460.94
  6. Step 6: Final answer
    x = 31,312.01

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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.