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Finding the Fourth Proportional to 160,551.62, 221,568.53 and 88,931.63

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Solution

The fourth proportional to 160,551.62, 221,568.53 and 88,931.63 is: 122,729.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,551.62 : 221,568.53 = 88,931.63 : x
  2. Step 2: Convert to fraction form
    160,551.62/221,568.53 = 88,931.63/x
  3. Step 3: Cross multiply
    160,551.62x = 221,568.53 × 88,931.63
  4. Step 4: Simplify right side
    160,551.62x = 19,704,450,529.60
  5. Step 5: Solve for x
    x = 19,704,450,529.60/160,551.62
  6. Step 6: Final answer
    x = 122,729.69

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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.