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Finding the Fourth Proportional to 93,382.49, 128,909.58 and 63,259.30

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Solution

The fourth proportional to 93,382.49, 128,909.58 and 63,259.30 is: 87,326.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,382.49 : 128,909.58 = 63,259.30 : x
  2. Step 2: Convert to fraction form
    93,382.49/128,909.58 = 63,259.30/x
  3. Step 3: Cross multiply
    93,382.49x = 128,909.58 × 63,259.30
  4. Step 4: Simplify right side
    93,382.49x = 8,154,728,992.89
  5. Step 5: Solve for x
    x = 8,154,728,992.89/93,382.49
  6. Step 6: Final answer
    x = 87,326.11

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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.