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Finding the Fourth Proportional to 92,951.52, 128,269.56 and 50,509.12

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Solution

The fourth proportional to 92,951.52, 128,269.56 and 50,509.12 is: 69,700.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,951.52 : 128,269.56 = 50,509.12 : x
  2. Step 2: Convert to fraction form
    92,951.52/128,269.56 = 50,509.12/x
  3. Step 3: Cross multiply
    92,951.52x = 128,269.56 × 50,509.12
  4. Step 4: Simplify right side
    92,951.52x = 6,478,782,598.39
  5. Step 5: Solve for x
    x = 6,478,782,598.39/92,951.52
  6. Step 6: Final answer
    x = 69,700.66

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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.