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Finding the Fourth Proportional to 92,771.64, 128,024.82 and 50,330.16

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Solution

The fourth proportional to 92,771.64, 128,024.82 and 50,330.16 is: 69,455.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,771.64 : 128,024.82 = 50,330.16 : x
  2. Step 2: Convert to fraction form
    92,771.64/128,024.82 = 50,330.16/x
  3. Step 3: Cross multiply
    92,771.64x = 128,024.82 × 50,330.16
  4. Step 4: Simplify right side
    92,771.64x = 6,443,509,674.57
  5. Step 5: Solve for x
    x = 6,443,509,674.57/92,771.64
  6. Step 6: Final answer
    x = 69,455.60

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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.