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Finding the Fourth Proportional to 114,555.20, 171,832.80 and 99,792.95

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Solution

The fourth proportional to 114,555.20, 171,832.80 and 99,792.95 is: 149,689.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,555.20 : 171,832.80 = 99,792.95 : x
  2. Step 2: Convert to fraction form
    114,555.20/171,832.80 = 99,792.95/x
  3. Step 3: Cross multiply
    114,555.20x = 171,832.80 × 99,792.95
  4. Step 4: Simplify right side
    114,555.20x = 17,147,702,018.76
  5. Step 5: Solve for x
    x = 17,147,702,018.76/114,555.20
  6. Step 6: Final answer
    x = 149,689.43

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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.