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Finding the Fourth Proportional to 109,812.32, 151,548.48 and 66,808.48

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Solution

The fourth proportional to 109,812.32, 151,548.48 and 66,808.48 is: 92,200.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,812.32 : 151,548.48 = 66,808.48 : x
  2. Step 2: Convert to fraction form
    109,812.32/151,548.48 = 66,808.48/x
  3. Step 3: Cross multiply
    109,812.32x = 151,548.48 × 66,808.48
  4. Step 4: Simplify right side
    109,812.32x = 10,124,723,595.11
  5. Step 5: Solve for x
    x = 10,124,723,595.11/109,812.32
  6. Step 6: Final answer
    x = 92,200.25

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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.