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Finding the Fourth Proportional to 235,246, 324,639.90 and 127,816.16

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Solution

The fourth proportional to 235,246, 324,639.90 and 127,816.16 is: 176,386.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,246 : 324,639.90 = 127,816.16 : x
  2. Step 2: Convert to fraction form
    235,246/324,639.90 = 127,816.16/x
  3. Step 3: Cross multiply
    235,246x = 324,639.90 × 127,816.16
  4. Step 4: Simplify right side
    235,246x = 41,494,225,400.78
  5. Step 5: Solve for x
    x = 41,494,225,400.78/235,246
  6. Step 6: Final answer
    x = 176,386.53

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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.