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Finding the Fourth Proportional to 90,093.64, 124,197.42 and 63,154.84

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Solution

The fourth proportional to 90,093.64, 124,197.42 and 63,154.84 is: 87,061.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,093.64 : 124,197.42 = 63,154.84 : x
  2. Step 2: Convert to fraction form
    90,093.64/124,197.42 = 63,154.84/x
  3. Step 3: Cross multiply
    90,093.64x = 124,197.42 × 63,154.84
  4. Step 4: Simplify right side
    90,093.64x = 7,843,668,188.51
  5. Step 5: Solve for x
    x = 7,843,668,188.51/90,093.64
  6. Step 6: Final answer
    x = 87,061.29

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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.