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Finding the Fourth Proportional to 250,561.63, 375,905.16 and 73,068.66

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Solution

The fourth proportional to 250,561.63, 375,905.16 and 73,068.66 is: 109,621.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,561.63 : 375,905.16 = 73,068.66 : x
  2. Step 2: Convert to fraction form
    250,561.63/375,905.16 = 73,068.66/x
  3. Step 3: Cross multiply
    250,561.63x = 375,905.16 × 73,068.66
  4. Step 4: Simplify right side
    250,561.63x = 27,466,886,328.29
  5. Step 5: Solve for x
    x = 27,466,886,328.29/250,561.63
  6. Step 6: Final answer
    x = 109,621.28

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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.