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Finding the Fourth Proportional to 103,697.64, 143,094.60 and 61,248.24

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Solution

The fourth proportional to 103,697.64, 143,094.60 and 61,248.24 is: 84,517.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,697.64 : 143,094.60 = 61,248.24 : x
  2. Step 2: Convert to fraction form
    103,697.64/143,094.60 = 61,248.24/x
  3. Step 3: Cross multiply
    103,697.64x = 143,094.60 × 61,248.24
  4. Step 4: Simplify right side
    103,697.64x = 8,764,292,403.50
  5. Step 5: Solve for x
    x = 8,764,292,403.50/103,697.64
  6. Step 6: Final answer
    x = 84,517.76

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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.