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Finding the Fourth Proportional to 125,762.28, 173,548.29 and 69,173.64

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Solution

The fourth proportional to 125,762.28, 173,548.29 and 69,173.64 is: 95,457.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,762.28 : 173,548.29 = 69,173.64 : x
  2. Step 2: Convert to fraction form
    125,762.28/173,548.29 = 69,173.64/x
  3. Step 3: Cross multiply
    125,762.28x = 173,548.29 × 69,173.64
  4. Step 4: Simplify right side
    125,762.28x = 12,004,966,935.08
  5. Step 5: Solve for x
    x = 12,004,966,935.08/125,762.28
  6. Step 6: Final answer
    x = 95,457.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.