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Finding the Fourth Proportional to 89,762.66, 123,866.88 and 49,476.74

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Solution

The fourth proportional to 89,762.66, 123,866.88 and 49,476.74 is: 68,274.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,762.66 : 123,866.88 = 49,476.74 : x
  2. Step 2: Convert to fraction form
    89,762.66/123,866.88 = 49,476.74/x
  3. Step 3: Cross multiply
    89,762.66x = 123,866.88 × 49,476.74
  4. Step 4: Simplify right side
    89,762.66x = 6,128,529,416.37
  5. Step 5: Solve for x
    x = 6,128,529,416.37/89,762.66
  6. Step 6: Final answer
    x = 68,274.82

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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.