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Finding the Fourth Proportional to 195,657.80, 293,486.70 and 102,345.80

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Solution

The fourth proportional to 195,657.80, 293,486.70 and 102,345.80 is: 153,518.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,657.80 : 293,486.70 = 102,345.80 : x
  2. Step 2: Convert to fraction form
    195,657.80/293,486.70 = 102,345.80/x
  3. Step 3: Cross multiply
    195,657.80x = 293,486.70 × 102,345.80
  4. Step 4: Simplify right side
    195,657.80x = 30,037,131,100.86
  5. Step 5: Solve for x
    x = 30,037,131,100.86/195,657.80
  6. Step 6: Final answer
    x = 153,518.70

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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.