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Finding the Fourth Proportional to 93,030.54, 128,378.27 and 52,747.02

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Solution

The fourth proportional to 93,030.54, 128,378.27 and 52,747.02 is: 72,788.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,030.54 : 128,378.27 = 52,747.02 : x
  2. Step 2: Convert to fraction form
    93,030.54/128,378.27 = 52,747.02/x
  3. Step 3: Cross multiply
    93,030.54x = 128,378.27 × 52,747.02
  4. Step 4: Simplify right side
    93,030.54x = 6,771,571,371.48
  5. Step 5: Solve for x
    x = 6,771,571,371.48/93,030.54
  6. Step 6: Final answer
    x = 72,788.69

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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.