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Finding the Fourth Proportional to 113,478.75, 170,202.80 and 46,909.64

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Solution

The fourth proportional to 113,478.75, 170,202.80 and 46,909.64 is: 70,358.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,478.75 : 170,202.80 = 46,909.64 : x
  2. Step 2: Convert to fraction form
    113,478.75/170,202.80 = 46,909.64/x
  3. Step 3: Cross multiply
    113,478.75x = 170,202.80 × 46,909.64
  4. Step 4: Simplify right side
    113,478.75x = 7,984,152,617.77
  5. Step 5: Solve for x
    x = 7,984,152,617.77/113,478.75
  6. Step 6: Final answer
    x = 70,358.13

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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.