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Finding the Fourth Proportional to 157,611.02, 217,503.21 and 101,022.40

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Solution

The fourth proportional to 157,611.02, 217,503.21 and 101,022.40 is: 139,410.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,611.02 : 217,503.21 = 101,022.40 : x
  2. Step 2: Convert to fraction form
    157,611.02/217,503.21 = 101,022.40/x
  3. Step 3: Cross multiply
    157,611.02x = 217,503.21 × 101,022.40
  4. Step 4: Simplify right side
    157,611.02x = 21,972,696,178.83
  5. Step 5: Solve for x
    x = 21,972,696,178.83/157,611.02
  6. Step 6: Final answer
    x = 139,410.91

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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.