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Finding the Fourth Proportional to 124,442.80, 171,730.92 and 73,455.60

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Solution

The fourth proportional to 124,442.80, 171,730.92 and 73,455.60 is: 101,368.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,442.80 : 171,730.92 = 73,455.60 : x
  2. Step 2: Convert to fraction form
    124,442.80/171,730.92 = 73,455.60/x
  3. Step 3: Cross multiply
    124,442.80x = 171,730.92 × 73,455.60
  4. Step 4: Simplify right side
    124,442.80x = 12,614,597,767.15
  5. Step 5: Solve for x
    x = 12,614,597,767.15/124,442.80
  6. Step 6: Final answer
    x = 101,368.64

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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.