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Finding the Fourth Proportional to 220,166.95, 303,923.43 and 148,643.86

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Solution

The fourth proportional to 220,166.95, 303,923.43 and 148,643.86 is: 205,191.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,166.95 : 303,923.43 = 148,643.86 : x
  2. Step 2: Convert to fraction form
    220,166.95/303,923.43 = 148,643.86/x
  3. Step 3: Cross multiply
    220,166.95x = 303,923.43 × 148,643.86
  4. Step 4: Simplify right side
    220,166.95x = 45,176,351,779.64
  5. Step 5: Solve for x
    x = 45,176,351,779.64/220,166.95
  6. Step 6: Final answer
    x = 205,191.34

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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.