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Finding the Fourth Proportional to 125,817.40, 188,719.98 and 46,925.56

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Solution

The fourth proportional to 125,817.40, 188,719.98 and 46,925.56 is: 70,386.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,817.40 : 188,719.98 = 46,925.56 : x
  2. Step 2: Convert to fraction form
    125,817.40/188,719.98 = 46,925.56/x
  3. Step 3: Cross multiply
    125,817.40x = 188,719.98 × 46,925.56
  4. Step 4: Simplify right side
    125,817.40x = 8,855,790,744.69
  5. Step 5: Solve for x
    x = 8,855,790,744.69/125,817.40
  6. Step 6: Final answer
    x = 70,386.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.