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Finding the Fourth Proportional to 316,443.72, 474,512.16 and 116,858.16

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Solution

The fourth proportional to 316,443.72, 474,512.16 and 116,858.16 is: 175,230.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,443.72 : 474,512.16 = 116,858.16 : x
  2. Step 2: Convert to fraction form
    316,443.72/474,512.16 = 116,858.16/x
  3. Step 3: Cross multiply
    316,443.72x = 474,512.16 × 116,858.16
  4. Step 4: Simplify right side
    316,443.72x = 55,450,617,915.23
  5. Step 5: Solve for x
    x = 55,450,617,915.23/316,443.72
  6. Step 6: Final answer
    x = 175,230.58

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1.5x scale

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.