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Finding the Fourth Proportional to 76,873.63, 106,152.33 and 48,242.92

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Solution

The fourth proportional to 76,873.63, 106,152.33 and 48,242.92 is: 66,617.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,873.63 : 106,152.33 = 48,242.92 : x
  2. Step 2: Convert to fraction form
    76,873.63/106,152.33 = 48,242.92/x
  3. Step 3: Cross multiply
    76,873.63x = 106,152.33 × 48,242.92
  4. Step 4: Simplify right side
    76,873.63x = 5,121,098,364.00
  5. Step 5: Solve for x
    x = 5,121,098,364.00/76,873.63
  6. Step 6: Final answer
    x = 66,617.10

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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.