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Finding the Fourth Proportional to 125,488.68, 173,174.50 and 74,511.58

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Solution

The fourth proportional to 125,488.68, 173,174.50 and 74,511.58 is: 102,826.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,488.68 : 173,174.50 = 74,511.58 : x
  2. Step 2: Convert to fraction form
    125,488.68/173,174.50 = 74,511.58/x
  3. Step 3: Cross multiply
    125,488.68x = 173,174.50 × 74,511.58
  4. Step 4: Simplify right side
    125,488.68x = 12,903,505,610.71
  5. Step 5: Solve for x
    x = 12,903,505,610.71/125,488.68
  6. Step 6: Final answer
    x = 102,826.05

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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.