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Finding the Fourth Proportional to 145,071.95, 200,147.96 and 94,800.11

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Solution

The fourth proportional to 145,071.95, 200,147.96 and 94,800.11 is: 130,790.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,071.95 : 200,147.96 = 94,800.11 : x
  2. Step 2: Convert to fraction form
    145,071.95/200,147.96 = 94,800.11/x
  3. Step 3: Cross multiply
    145,071.95x = 200,147.96 × 94,800.11
  4. Step 4: Simplify right side
    145,071.95x = 18,974,047,860.54
  5. Step 5: Solve for x
    x = 18,974,047,860.54/145,071.95
  6. Step 6: Final answer
    x = 130,790.61

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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.