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Finding the Fourth Proportional to 93,928.30, 129,745.28 and 70,013.46

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Solution

The fourth proportional to 93,928.30, 129,745.28 and 70,013.46 is: 96,711.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,928.30 : 129,745.28 = 70,013.46 : x
  2. Step 2: Convert to fraction form
    93,928.30/129,745.28 = 70,013.46/x
  3. Step 3: Cross multiply
    93,928.30x = 129,745.28 × 70,013.46
  4. Step 4: Simplify right side
    93,928.30x = 9,083,915,971.47
  5. Step 5: Solve for x
    x = 9,083,915,971.47/93,928.30
  6. Step 6: Final answer
    x = 96,711.17

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1.5x scale

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.