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Finding the Fourth Proportional to 125,916.96, 173,766 and 69,328.32

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Solution

The fourth proportional to 125,916.96, 173,766 and 69,328.32 is: 95,673.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,916.96 : 173,766 = 69,328.32 : x
  2. Step 2: Convert to fraction form
    125,916.96/173,766 = 69,328.32/x
  3. Step 3: Cross multiply
    125,916.96x = 173,766 × 69,328.32
  4. Step 4: Simplify right side
    125,916.96x = 12,046,904,853.12
  5. Step 5: Solve for x
    x = 12,046,904,853.12/125,916.96
  6. Step 6: Final answer
    x = 95,673.41

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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.