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Finding the Fourth Proportional to 526,429.61, 789,613.24 and 147,341.94

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Solution

The fourth proportional to 526,429.61, 789,613.24 and 147,341.94 is: 221,004.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,429.61 : 789,613.24 = 147,341.94 : x
  2. Step 2: Convert to fraction form
    526,429.61/789,613.24 = 147,341.94/x
  3. Step 3: Cross multiply
    526,429.61x = 789,613.24 × 147,341.94
  4. Step 4: Simplify right side
    526,429.61x = 116,343,143,163.75
  5. Step 5: Solve for x
    x = 116,343,143,163.75/526,429.61
  6. Step 6: Final answer
    x = 221,004.18

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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.