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Finding the Fourth Proportional to 125,925.36, 173,780.82 and 69,338.76

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Solution

The fourth proportional to 125,925.36, 173,780.82 and 69,338.76 is: 95,689.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,925.36 : 173,780.82 = 69,338.76 : x
  2. Step 2: Convert to fraction form
    125,925.36/173,780.82 = 69,338.76/x
  3. Step 3: Cross multiply
    125,925.36x = 173,780.82 × 69,338.76
  4. Step 4: Simplify right side
    125,925.36x = 12,049,746,570.58
  5. Step 5: Solve for x
    x = 12,049,746,570.58/125,925.36
  6. Step 6: Final answer
    x = 95,689.59

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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.