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Finding the Fourth Proportional to 248,117.40, 372,176.10 and 178,133.40

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Solution

The fourth proportional to 248,117.40, 372,176.10 and 178,133.40 is: 267,200.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,117.40 : 372,176.10 = 178,133.40 : x
  2. Step 2: Convert to fraction form
    248,117.40/372,176.10 = 178,133.40/x
  3. Step 3: Cross multiply
    248,117.40x = 372,176.10 × 178,133.40
  4. Step 4: Simplify right side
    248,117.40x = 66,296,994,091.74
  5. Step 5: Solve for x
    x = 66,296,994,091.74/248,117.40
  6. Step 6: Final answer
    x = 267,200.10

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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.