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Finding the Fourth Proportional to 93,004.60, 128,346.86 and 54,765.80

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Solution

The fourth proportional to 93,004.60, 128,346.86 and 54,765.80 is: 75,577.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,004.60 : 128,346.86 = 54,765.80 : x
  2. Step 2: Convert to fraction form
    93,004.60/128,346.86 = 54,765.80/x
  3. Step 3: Cross multiply
    93,004.60x = 128,346.86 × 54,765.80
  4. Step 4: Simplify right side
    93,004.60x = 7,029,018,465.39
  5. Step 5: Solve for x
    x = 7,029,018,465.39/93,004.60
  6. Step 6: Final answer
    x = 75,577.11

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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.