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Finding the Fourth Proportional to 134,434.80, 201,565.80 and 55,580.40

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Solution

The fourth proportional to 134,434.80, 201,565.80 and 55,580.40 is: 83,334.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,434.80 : 201,565.80 = 55,580.40 : x
  2. Step 2: Convert to fraction form
    134,434.80/201,565.80 = 55,580.40/x
  3. Step 3: Cross multiply
    134,434.80x = 201,565.80 × 55,580.40
  4. Step 4: Simplify right side
    134,434.80x = 11,203,107,790.32
  5. Step 5: Solve for x
    x = 11,203,107,790.32/134,434.80
  6. Step 6: Final answer
    x = 83,334.88

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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.