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Finding the Fourth Proportional to 169,638.40, 254,708.70 and 94,907.80

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Solution

The fourth proportional to 169,638.40, 254,708.70 and 94,907.80 is: 142,502.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,638.40 : 254,708.70 = 94,907.80 : x
  2. Step 2: Convert to fraction form
    169,638.40/254,708.70 = 94,907.80/x
  3. Step 3: Cross multiply
    169,638.40x = 254,708.70 × 94,907.80
  4. Step 4: Simplify right side
    169,638.40x = 24,173,842,357.86
  5. Step 5: Solve for x
    x = 24,173,842,357.86/169,638.40
  6. Step 6: Final answer
    x = 142,502.18

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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.