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Finding the Fourth Proportional to 125,689.83, 173,394.16 and 111,364.27

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Solution

The fourth proportional to 125,689.83, 173,394.16 and 111,364.27 is: 153,631.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,689.83 : 173,394.16 = 111,364.27 : x
  2. Step 2: Convert to fraction form
    125,689.83/173,394.16 = 111,364.27/x
  3. Step 3: Cross multiply
    125,689.83x = 173,394.16 × 111,364.27
  4. Step 4: Simplify right side
    125,689.83x = 19,309,914,050.66
  5. Step 5: Solve for x
    x = 19,309,914,050.66/125,689.83
  6. Step 6: Final answer
    x = 153,631.48

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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.