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Finding the Fourth Proportional to 72,455.90, 101,230.90 and 72,455.90

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Solution

The fourth proportional to 72,455.90, 101,230.90 and 72,455.90 is: 101,230.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,455.90 : 101,230.90 = 72,455.90 : x
  2. Step 2: Convert to fraction form
    72,455.90/101,230.90 = 72,455.90/x
  3. Step 3: Cross multiply
    72,455.90x = 101,230.90 × 72,455.90
  4. Step 4: Simplify right side
    72,455.90x = 7,334,775,967.31
  5. Step 5: Solve for x
    x = 7,334,775,967.31/72,455.90
  6. Step 6: Final answer
    x = 101,230.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.