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Finding the Fourth Proportional to 125,718.88, 173,496.72 and 75,408.16

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Solution

The fourth proportional to 125,718.88, 173,496.72 and 75,408.16 is: 104,066.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,718.88 : 173,496.72 = 75,408.16 : x
  2. Step 2: Convert to fraction form
    125,718.88/173,496.72 = 75,408.16/x
  3. Step 3: Cross multiply
    125,718.88x = 173,496.72 × 75,408.16
  4. Step 4: Simplify right side
    125,718.88x = 13,083,068,421.24
  5. Step 5: Solve for x
    x = 13,083,068,421.24/125,718.88
  6. Step 6: Final answer
    x = 104,066.06

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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.