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Finding the Fourth Proportional to 169,116.64, 253,674.79 and 69,277.02

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Solution

The fourth proportional to 169,116.64, 253,674.79 and 69,277.02 is: 103,915.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,116.64 : 253,674.79 = 69,277.02 : x
  2. Step 2: Convert to fraction form
    169,116.64/253,674.79 = 69,277.02/x
  3. Step 3: Cross multiply
    169,116.64x = 253,674.79 × 69,277.02
  4. Step 4: Simplify right side
    169,116.64x = 17,573,833,500.33
  5. Step 5: Solve for x
    x = 17,573,833,500.33/169,116.64
  6. Step 6: Final answer
    x = 103,915.46

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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.