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Finding the Fourth Proportional to 248,113.70, 372,279.90 and 114,925.40

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Solution

The fourth proportional to 248,113.70, 372,279.90 and 114,925.40 is: 172,438.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,113.70 : 372,279.90 = 114,925.40 : x
  2. Step 2: Convert to fraction form
    248,113.70/372,279.90 = 114,925.40/x
  3. Step 3: Cross multiply
    248,113.70x = 372,279.90 × 114,925.40
  4. Step 4: Simplify right side
    248,113.70x = 42,784,416,419.46
  5. Step 5: Solve for x
    x = 42,784,416,419.46/248,113.70
  6. Step 6: Final answer
    x = 172,438.75

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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.