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Finding the Fourth Proportional to 295,516.85, 443,140.40 and 105,903.95

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Solution

The fourth proportional to 295,516.85, 443,140.40 and 105,903.95 is: 158,807.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,516.85 : 443,140.40 = 105,903.95 : x
  2. Step 2: Convert to fraction form
    295,516.85/443,140.40 = 105,903.95/x
  3. Step 3: Cross multiply
    295,516.85x = 443,140.40 × 105,903.95
  4. Step 4: Simplify right side
    295,516.85x = 46,930,316,019.36
  5. Step 5: Solve for x
    x = 46,930,316,019.36/295,516.85
  6. Step 6: Final answer
    x = 158,807.58

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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.