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Finding the Fourth Proportional to 125,463.50, 173,117.29 and 71,015.40

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Solution

The fourth proportional to 125,463.50, 173,117.29 and 71,015.40 is: 97,988.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,463.50 : 173,117.29 = 71,015.40 : x
  2. Step 2: Convert to fraction form
    125,463.50/173,117.29 = 71,015.40/x
  3. Step 3: Cross multiply
    125,463.50x = 173,117.29 × 71,015.40
  4. Step 4: Simplify right side
    125,463.50x = 12,293,993,418.73
  5. Step 5: Solve for x
    x = 12,293,993,418.73/125,463.50
  6. Step 6: Final answer
    x = 97,988.60

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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.