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Finding the Fourth Proportional to 169,492.20, 254,432.70 and 103,007.40

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Solution

The fourth proportional to 169,492.20, 254,432.70 and 103,007.40 is: 154,629.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,492.20 : 254,432.70 = 103,007.40 : x
  2. Step 2: Convert to fraction form
    169,492.20/254,432.70 = 103,007.40/x
  3. Step 3: Cross multiply
    169,492.20x = 254,432.70 × 103,007.40
  4. Step 4: Simplify right side
    169,492.20x = 26,208,450,901.98
  5. Step 5: Solve for x
    x = 26,208,450,901.98/169,492.20
  6. Step 6: Final answer
    x = 154,629.24

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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.