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Finding the Fourth Proportional to 224,785.81, 310,225.86 and 122,826.77

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Solution

The fourth proportional to 224,785.81, 310,225.86 and 122,826.77 is: 169,512.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,785.81 : 310,225.86 = 122,826.77 : x
  2. Step 2: Convert to fraction form
    224,785.81/310,225.86 = 122,826.77/x
  3. Step 3: Cross multiply
    224,785.81x = 310,225.86 × 122,826.77
  4. Step 4: Simplify right side
    224,785.81x = 38,104,040,354.27
  5. Step 5: Solve for x
    x = 38,104,040,354.27/224,785.81
  6. Step 6: Final answer
    x = 169,512.66

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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.