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Finding the Fourth Proportional to 141,483.87, 195,246.72 and 77,820.30

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Solution

The fourth proportional to 141,483.87, 195,246.72 and 77,820.30 is: 107,391.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,483.87 : 195,246.72 = 77,820.30 : x
  2. Step 2: Convert to fraction form
    141,483.87/195,246.72 = 77,820.30/x
  3. Step 3: Cross multiply
    141,483.87x = 195,246.72 × 77,820.30
  4. Step 4: Simplify right side
    141,483.87x = 15,194,158,324.42
  5. Step 5: Solve for x
    x = 15,194,158,324.42/141,483.87
  6. Step 6: Final answer
    x = 107,391.45

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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.