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Finding the Fourth Proportional to 92,879.61, 128,175.95 and 52,046.79

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Solution

The fourth proportional to 92,879.61, 128,175.95 and 52,046.79 is: 71,825.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,879.61 : 128,175.95 = 52,046.79 : x
  2. Step 2: Convert to fraction form
    92,879.61/128,175.95 = 52,046.79/x
  3. Step 3: Cross multiply
    92,879.61x = 128,175.95 × 52,046.79
  4. Step 4: Simplify right side
    92,879.61x = 6,671,146,402.16
  5. Step 5: Solve for x
    x = 6,671,146,402.16/92,879.61
  6. Step 6: Final answer
    x = 71,825.74

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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.