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Finding the Fourth Proportional to 252,776.16, 348,813.54 and 139,590

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Solution

The fourth proportional to 252,776.16, 348,813.54 and 139,590 is: 192,624.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,776.16 : 348,813.54 = 139,590 : x
  2. Step 2: Convert to fraction form
    252,776.16/348,813.54 = 139,590/x
  3. Step 3: Cross multiply
    252,776.16x = 348,813.54 × 139,590
  4. Step 4: Simplify right side
    252,776.16x = 48,690,882,048.60
  5. Step 5: Solve for x
    x = 48,690,882,048.60/252,776.16
  6. Step 6: Final answer
    x = 192,624.50

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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.