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Finding the Fourth Proportional to 353,405.76, 530,378.37 and 176,061.93

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Solution

The fourth proportional to 353,405.76, 530,378.37 and 176,061.93 is: 264,227.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,405.76 : 530,378.37 = 176,061.93 : x
  2. Step 2: Convert to fraction form
    353,405.76/530,378.37 = 176,061.93/x
  3. Step 3: Cross multiply
    353,405.76x = 530,378.37 × 176,061.93
  4. Step 4: Simplify right side
    353,405.76x = 93,379,439,452.45
  5. Step 5: Solve for x
    x = 93,379,439,452.45/353,405.76
  6. Step 6: Final answer
    x = 264,227.27

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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.