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Finding the Fourth Proportional to 125,492.95, 173,175.53 and 77,745.27

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Solution

The fourth proportional to 125,492.95, 173,175.53 and 77,745.27 is: 107,285.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,492.95 : 173,175.53 = 77,745.27 : x
  2. Step 2: Convert to fraction form
    125,492.95/173,175.53 = 77,745.27/x
  3. Step 3: Cross multiply
    125,492.95x = 173,175.53 × 77,745.27
  4. Step 4: Simplify right side
    125,492.95x = 13,463,578,337.24
  5. Step 5: Solve for x
    x = 13,463,578,337.24/125,492.95
  6. Step 6: Final answer
    x = 107,285.54

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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.