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Finding the Fourth Proportional to 252,803.32, 348,838.74 and 139,619.32

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Solution

The fourth proportional to 252,803.32, 348,838.74 and 139,619.32 is: 192,658.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,803.32 : 348,838.74 = 139,619.32 : x
  2. Step 2: Convert to fraction form
    252,803.32/348,838.74 = 139,619.32/x
  3. Step 3: Cross multiply
    252,803.32x = 348,838.74 × 139,619.32
  4. Step 4: Simplify right side
    252,803.32x = 48,704,627,668.46
  5. Step 5: Solve for x
    x = 48,704,627,668.46/252,803.32
  6. Step 6: Final answer
    x = 192,658.18

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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.