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Finding the Fourth Proportional to 292,990.50, 439,225.11 and 105,960.42

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Solution

The fourth proportional to 292,990.50, 439,225.11 and 105,960.42 is: 158,846.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,990.50 : 439,225.11 = 105,960.42 : x
  2. Step 2: Convert to fraction form
    292,990.50/439,225.11 = 105,960.42/x
  3. Step 3: Cross multiply
    292,990.50x = 439,225.11 × 105,960.42
  4. Step 4: Simplify right side
    292,990.50x = 46,540,477,130.15
  5. Step 5: Solve for x
    x = 46,540,477,130.15/292,990.50
  6. Step 6: Final answer
    x = 158,846.37

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1.5x scale

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.