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Finding the Fourth Proportional to 93,294, 128,747.28 and 50,854.88

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Solution

The fourth proportional to 93,294, 128,747.28 and 50,854.88 is: 70,180.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,294 : 128,747.28 = 50,854.88 : x
  2. Step 2: Convert to fraction form
    93,294/128,747.28 = 50,854.88/x
  3. Step 3: Cross multiply
    93,294x = 128,747.28 × 50,854.88
  4. Step 4: Simplify right side
    93,294x = 6,547,427,474.73
  5. Step 5: Solve for x
    x = 6,547,427,474.73/93,294
  6. Step 6: Final answer
    x = 70,180.58

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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.