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Finding the Fourth Proportional to 93,380.94, 128,860.56 and 53,089.02

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Solution

The fourth proportional to 93,380.94, 128,860.56 and 53,089.02 is: 73,259.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,380.94 : 128,860.56 = 53,089.02 : x
  2. Step 2: Convert to fraction form
    93,380.94/128,860.56 = 53,089.02/x
  3. Step 3: Cross multiply
    93,380.94x = 128,860.56 × 53,089.02
  4. Step 4: Simplify right side
    93,380.94x = 6,841,080,847.05
  5. Step 5: Solve for x
    x = 6,841,080,847.05/93,380.94
  6. Step 6: Final answer
    x = 73,259.93

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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.