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Finding the Fourth Proportional to 78,506.60, 108,324.42 and 46,683.32

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Solution

The fourth proportional to 78,506.60, 108,324.42 and 46,683.32 is: 64,414.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,506.60 : 108,324.42 = 46,683.32 : x
  2. Step 2: Convert to fraction form
    78,506.60/108,324.42 = 46,683.32/x
  3. Step 3: Cross multiply
    78,506.60x = 108,324.42 × 46,683.32
  4. Step 4: Simplify right side
    78,506.60x = 5,056,943,562.67
  5. Step 5: Solve for x
    x = 5,056,943,562.67/78,506.60
  6. Step 6: Final answer
    x = 64,414.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.