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Finding the Fourth Proportional to 125,672.16, 173,323.20 and 83,234.40

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Solution

The fourth proportional to 125,672.16, 173,323.20 and 83,234.40 is: 114,794.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,672.16 : 173,323.20 = 83,234.40 : x
  2. Step 2: Convert to fraction form
    125,672.16/173,323.20 = 83,234.40/x
  3. Step 3: Cross multiply
    125,672.16x = 173,323.20 × 83,234.40
  4. Step 4: Simplify right side
    125,672.16x = 14,426,452,558.08
  5. Step 5: Solve for x
    x = 14,426,452,558.08/125,672.16
  6. Step 6: Final answer
    x = 114,794.34

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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.