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Finding the Fourth Proportional to 253,820.40, 380,730.60 and 175,023.60

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Solution

The fourth proportional to 253,820.40, 380,730.60 and 175,023.60 is: 262,535.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,820.40 : 380,730.60 = 175,023.60 : x
  2. Step 2: Convert to fraction form
    253,820.40/380,730.60 = 175,023.60/x
  3. Step 3: Cross multiply
    253,820.40x = 380,730.60 × 175,023.60
  4. Step 4: Simplify right side
    253,820.40x = 66,636,840,242.16
  5. Step 5: Solve for x
    x = 66,636,840,242.16/253,820.40
  6. Step 6: Final answer
    x = 262,535.40

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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.