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Finding the Fourth Proportional to 165,210.40, 247,825.04 and 46,872.40

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Solution

The fourth proportional to 165,210.40, 247,825.04 and 46,872.40 is: 70,311.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,210.40 : 247,825.04 = 46,872.40 : x
  2. Step 2: Convert to fraction form
    165,210.40/247,825.04 = 46,872.40/x
  3. Step 3: Cross multiply
    165,210.40x = 247,825.04 × 46,872.40
  4. Step 4: Simplify right side
    165,210.40x = 11,616,154,404.90
  5. Step 5: Solve for x
    x = 11,616,154,404.90/165,210.40
  6. Step 6: Final answer
    x = 70,311.28

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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.