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Finding the Fourth Proportional to 144,407.98, 199,376.94 and 129,274.84

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Solution

The fourth proportional to 144,407.98, 199,376.94 and 129,274.84 is: 178,483.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,407.98 : 199,376.94 = 129,274.84 : x
  2. Step 2: Convert to fraction form
    144,407.98/199,376.94 = 129,274.84/x
  3. Step 3: Cross multiply
    144,407.98x = 199,376.94 × 129,274.84
  4. Step 4: Simplify right side
    144,407.98x = 25,774,422,018.19
  5. Step 5: Solve for x
    x = 25,774,422,018.19/144,407.98
  6. Step 6: Final answer
    x = 178,483.36

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1.5x scale

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.