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Finding the Fourth Proportional to 171,925,793.60, 257,888,690.40 and 156,053,422.40

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Solution

The fourth proportional to 171,925,793.60, 257,888,690.40 and 156,053,422.40 is: 234,080,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,925,793.60 : 257,888,690.40 = 156,053,422.40 : x
  2. Step 2: Convert to fraction form
    171,925,793.60/257,888,690.40 = 156,053,422.40/x
  3. Step 3: Cross multiply
    171,925,793.60x = 257,888,690.40 × 156,053,422.40
  4. Step 4: Simplify right side
    171,925,793.60x = 40,244,412,735,174,024
  5. Step 5: Solve for x
    x = 40,244,412,735,174,024/171,925,793.60
  6. Step 6: Final answer
    x = 234,080,133.60

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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.