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Finding the Fourth Proportional to 144,577.94, 199,493.76 and 90,824.90

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Solution

The fourth proportional to 144,577.94, 199,493.76 and 90,824.90 is: 125,323.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,577.94 : 199,493.76 = 90,824.90 : x
  2. Step 2: Convert to fraction form
    144,577.94/199,493.76 = 90,824.90/x
  3. Step 3: Cross multiply
    144,577.94x = 199,493.76 × 90,824.90
  4. Step 4: Simplify right side
    144,577.94x = 18,118,999,805.16
  5. Step 5: Solve for x
    x = 18,118,999,805.16/144,577.94
  6. Step 6: Final answer
    x = 125,323.40

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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.