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Finding the Fourth Proportional to 93,060.48, 128,354.65 and 59,039.61

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Solution

The fourth proportional to 93,060.48, 128,354.65 and 59,039.61 is: 81,431.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,060.48 : 128,354.65 = 59,039.61 : x
  2. Step 2: Convert to fraction form
    93,060.48/128,354.65 = 59,039.61/x
  3. Step 3: Cross multiply
    93,060.48x = 128,354.65 × 59,039.61
  4. Step 4: Simplify right side
    93,060.48x = 7,578,008,477.69
  5. Step 5: Solve for x
    x = 7,578,008,477.69/93,060.48
  6. Step 6: Final answer
    x = 81,431.01

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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.