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Finding the Fourth Proportional to 93,326.60, 128,790.48 and 50,885.13

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Solution

The fourth proportional to 93,326.60, 128,790.48 and 50,885.13 is: 70,221.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,326.60 : 128,790.48 = 50,885.13 : x
  2. Step 2: Convert to fraction form
    93,326.60/128,790.48 = 50,885.13/x
  3. Step 3: Cross multiply
    93,326.60x = 128,790.48 × 50,885.13
  4. Step 4: Simplify right side
    93,326.60x = 6,553,520,317.56
  5. Step 5: Solve for x
    x = 6,553,520,317.56/93,326.60
  6. Step 6: Final answer
    x = 70,221.36

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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.