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Finding the Fourth Proportional to 174,353.16, 261,490.86 and 69,143.88

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Solution

The fourth proportional to 174,353.16, 261,490.86 and 69,143.88 is: 103,700.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,353.16 : 261,490.86 = 69,143.88 : x
  2. Step 2: Convert to fraction form
    174,353.16/261,490.86 = 69,143.88/x
  3. Step 3: Cross multiply
    174,353.16x = 261,490.86 × 69,143.88
  4. Step 4: Simplify right side
    174,353.16x = 18,080,492,644.94
  5. Step 5: Solve for x
    x = 18,080,492,644.94/174,353.16
  6. Step 6: Final answer
    x = 103,700.40

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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.