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Finding the Fourth Proportional to 169,467.40, 254,492.70 and 90,735.40

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Solution

The fourth proportional to 169,467.40, 254,492.70 and 90,735.40 is: 136,259.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,467.40 : 254,492.70 = 90,735.40 : x
  2. Step 2: Convert to fraction form
    169,467.40/254,492.70 = 90,735.40/x
  3. Step 3: Cross multiply
    169,467.40x = 254,492.70 × 90,735.40
  4. Step 4: Simplify right side
    169,467.40x = 23,091,496,931.58
  5. Step 5: Solve for x
    x = 23,091,496,931.58/169,467.40
  6. Step 6: Final answer
    x = 136,259.23

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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.