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Finding the Fourth Proportional to 139,755.52, 209,666.04 and 46,261.24

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Solution

The fourth proportional to 139,755.52, 209,666.04 and 46,261.24 is: 69,402.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,755.52 : 209,666.04 = 46,261.24 : x
  2. Step 2: Convert to fraction form
    139,755.52/209,666.04 = 46,261.24/x
  3. Step 3: Cross multiply
    139,755.52x = 209,666.04 × 46,261.24
  4. Step 4: Simplify right side
    139,755.52x = 9,699,410,996.29
  5. Step 5: Solve for x
    x = 9,699,410,996.29/139,755.52
  6. Step 6: Final answer
    x = 69,402.70

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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.