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Finding the Fourth Proportional to 70,549.92, 105,928.56 and 69,513.12

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Solution

The fourth proportional to 70,549.92, 105,928.56 and 69,513.12 is: 104,371.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,549.92 : 105,928.56 = 69,513.12 : x
  2. Step 2: Convert to fraction form
    70,549.92/105,928.56 = 69,513.12/x
  3. Step 3: Cross multiply
    70,549.92x = 105,928.56 × 69,513.12
  4. Step 4: Simplify right side
    70,549.92x = 7,363,424,702.71
  5. Step 5: Solve for x
    x = 7,363,424,702.71/70,549.92
  6. Step 6: Final answer
    x = 104,371.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.