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Finding the Fourth Proportional to 72,455.20, 108,464.10 and 72,455.20

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Solution

The fourth proportional to 72,455.20, 108,464.10 and 72,455.20 is: 108,464.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,455.20 : 108,464.10 = 72,455.20 : x
  2. Step 2: Convert to fraction form
    72,455.20/108,464.10 = 72,455.20/x
  3. Step 3: Cross multiply
    72,455.20x = 108,464.10 × 72,455.20
  4. Step 4: Simplify right side
    72,455.20x = 7,858,788,058.32
  5. Step 5: Solve for x
    x = 7,858,788,058.32/72,455.20
  6. Step 6: Final answer
    x = 108,464.10

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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.