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Finding the Fourth Proportional to 255,559.10, 383,516.52 and 105,800.17

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Solution

The fourth proportional to 255,559.10, 383,516.52 and 105,800.17 is: 158,773.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,559.10 : 383,516.52 = 105,800.17 : x
  2. Step 2: Convert to fraction form
    255,559.10/383,516.52 = 105,800.17/x
  3. Step 3: Cross multiply
    255,559.10x = 383,516.52 × 105,800.17
  4. Step 4: Simplify right side
    255,559.10x = 40,576,113,013.81
  5. Step 5: Solve for x
    x = 40,576,113,013.81/255,559.10
  6. Step 6: Final answer
    x = 158,773.89

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1.5x scale

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.