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Finding the Fourth Proportional to 191,950.46, 287,925.64 and 103,081.71

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Solution

The fourth proportional to 191,950.46, 287,925.64 and 103,081.71 is: 154,622.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,950.46 : 287,925.64 = 103,081.71 : x
  2. Step 2: Convert to fraction form
    191,950.46/287,925.64 = 103,081.71/x
  3. Step 3: Cross multiply
    191,950.46x = 287,925.64 × 103,081.71
  4. Step 4: Simplify right side
    191,950.46x = 29,679,868,146.06
  5. Step 5: Solve for x
    x = 29,679,868,146.06/191,950.46
  6. Step 6: Final answer
    x = 154,622.54

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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.