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Finding the Fourth Proportional to 110,465.40, 165,719.70 and 47,285.40

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Solution

The fourth proportional to 110,465.40, 165,719.70 and 47,285.40 is: 70,937.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,465.40 : 165,719.70 = 47,285.40 : x
  2. Step 2: Convert to fraction form
    110,465.40/165,719.70 = 47,285.40/x
  3. Step 3: Cross multiply
    110,465.40x = 165,719.70 × 47,285.40
  4. Step 4: Simplify right side
    110,465.40x = 7,836,122,302.38
  5. Step 5: Solve for x
    x = 7,836,122,302.38/110,465.40
  6. Step 6: Final answer
    x = 70,937.35

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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.