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Finding the Fourth Proportional to 73,482.72, 110,159.32 and 29,140.60

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Solution

The fourth proportional to 73,482.72, 110,159.32 and 29,140.60 is: 43,685.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,482.72 : 110,159.32 = 29,140.60 : x
  2. Step 2: Convert to fraction form
    73,482.72/110,159.32 = 29,140.60/x
  3. Step 3: Cross multiply
    73,482.72x = 110,159.32 × 29,140.60
  4. Step 4: Simplify right side
    73,482.72x = 3,210,108,680.39
  5. Step 5: Solve for x
    x = 3,210,108,680.39/73,482.72
  6. Step 6: Final answer
    x = 43,685.22

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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.