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Finding the Fourth Proportional to 93,342, 128,807.28 and 53,050.44

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Solution

The fourth proportional to 93,342, 128,807.28 and 53,050.44 is: 73,206.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,342 : 128,807.28 = 53,050.44 : x
  2. Step 2: Convert to fraction form
    93,342/128,807.28 = 53,050.44/x
  3. Step 3: Cross multiply
    93,342x = 128,807.28 × 53,050.44
  4. Step 4: Simplify right side
    93,342x = 6,833,282,879.20
  5. Step 5: Solve for x
    x = 6,833,282,879.20/93,342
  6. Step 6: Final answer
    x = 73,206.95

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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.