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Finding the Fourth Proportional to 93,385.50, 128,871.99 and 59,851.50

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Solution

The fourth proportional to 93,385.50, 128,871.99 and 59,851.50 is: 82,595.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,385.50 : 128,871.99 = 59,851.50 : x
  2. Step 2: Convert to fraction form
    93,385.50/128,871.99 = 59,851.50/x
  3. Step 3: Cross multiply
    93,385.50x = 128,871.99 × 59,851.50
  4. Step 4: Simplify right side
    93,385.50x = 7,713,181,909.49
  5. Step 5: Solve for x
    x = 7,713,181,909.49/93,385.50
  6. Step 6: Final answer
    x = 82,595.07

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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.