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Finding the Fourth Proportional to 89,476.68, 123,295.86 and 69,210.48

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Solution

The fourth proportional to 89,476.68, 123,295.86 and 69,210.48 is: 95,369.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,476.68 : 123,295.86 = 69,210.48 : x
  2. Step 2: Convert to fraction form
    89,476.68/123,295.86 = 69,210.48/x
  3. Step 3: Cross multiply
    89,476.68x = 123,295.86 × 69,210.48
  4. Step 4: Simplify right side
    89,476.68x = 8,533,365,652.61
  5. Step 5: Solve for x
    x = 8,533,365,652.61/89,476.68
  6. Step 6: Final answer
    x = 95,369.72

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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.