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Finding the Fourth Proportional to 93,467.60, 128,987.24 and 51,027.92

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Solution

The fourth proportional to 93,467.60, 128,987.24 and 51,027.92 is: 70,419.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,467.60 : 128,987.24 = 51,027.92 : x
  2. Step 2: Convert to fraction form
    93,467.60/128,987.24 = 51,027.92/x
  3. Step 3: Cross multiply
    93,467.60x = 128,987.24 × 51,027.92
  4. Step 4: Simplify right side
    93,467.60x = 6,581,950,563.74
  5. Step 5: Solve for x
    x = 6,581,950,563.74/93,467.60
  6. Step 6: Final answer
    x = 70,419.60

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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.