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Finding the Fourth Proportional to 233,197.40, 350,055.30 and 128,221.40

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Solution

The fourth proportional to 233,197.40, 350,055.30 and 128,221.40 is: 192,474.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,197.40 : 350,055.30 = 128,221.40 : x
  2. Step 2: Convert to fraction form
    233,197.40/350,055.30 = 128,221.40/x
  3. Step 3: Cross multiply
    233,197.40x = 350,055.30 × 128,221.40
  4. Step 4: Simplify right side
    233,197.40x = 44,884,580,643.42
  5. Step 5: Solve for x
    x = 44,884,580,643.42/233,197.40
  6. Step 6: Final answer
    x = 192,474.62

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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.