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Finding the Fourth Proportional to 248,730.40, 372,876.90 and 148,930.30

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Solution

The fourth proportional to 248,730.40, 372,876.90 and 148,930.30 is: 223,264.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,730.40 : 372,876.90 = 148,930.30 : x
  2. Step 2: Convert to fraction form
    248,730.40/372,876.90 = 148,930.30/x
  3. Step 3: Cross multiply
    248,730.40x = 372,876.90 × 148,930.30
  4. Step 4: Simplify right side
    248,730.40x = 55,532,668,580.07
  5. Step 5: Solve for x
    x = 55,532,668,580.07/248,730.40
  6. Step 6: Final answer
    x = 223,264.50

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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.