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Finding the Fourth Proportional to 212,657.90, 293,590.08 and 141,134.90

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Solution

The fourth proportional to 212,657.90, 293,590.08 and 141,134.90 is: 194,847.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,657.90 : 293,590.08 = 141,134.90 : x
  2. Step 2: Convert to fraction form
    212,657.90/293,590.08 = 141,134.90/x
  3. Step 3: Cross multiply
    212,657.90x = 293,590.08 × 141,134.90
  4. Step 4: Simplify right side
    212,657.90x = 41,435,806,581.79
  5. Step 5: Solve for x
    x = 41,435,806,581.79/212,657.90
  6. Step 6: Final answer
    x = 194,847.25

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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.