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Finding the Fourth Proportional to 108,934.40, 163,401.60 and 46,611.20

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Solution

The fourth proportional to 108,934.40, 163,401.60 and 46,611.20 is: 69,916.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,934.40 : 163,401.60 = 46,611.20 : x
  2. Step 2: Convert to fraction form
    108,934.40/163,401.60 = 46,611.20/x
  3. Step 3: Cross multiply
    108,934.40x = 163,401.60 × 46,611.20
  4. Step 4: Simplify right side
    108,934.40x = 7,616,344,657.92
  5. Step 5: Solve for x
    x = 7,616,344,657.92/108,934.40
  6. Step 6: Final answer
    x = 69,916.80

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1.5x scale

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.