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Finding the Fourth Proportional to 195,651.60, 293,477.40 and 128,000.40

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Solution

The fourth proportional to 195,651.60, 293,477.40 and 128,000.40 is: 192,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,651.60 : 293,477.40 = 128,000.40 : x
  2. Step 2: Convert to fraction form
    195,651.60/293,477.40 = 128,000.40/x
  3. Step 3: Cross multiply
    195,651.60x = 293,477.40 × 128,000.40
  4. Step 4: Simplify right side
    195,651.60x = 37,565,224,590.96
  5. Step 5: Solve for x
    x = 37,565,224,590.96/195,651.60
  6. Step 6: Final answer
    x = 192,000.60

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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.