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Finding the Fourth Proportional to 92,884.60, 128,174.70 and 59,347

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Solution

The fourth proportional to 92,884.60, 128,174.70 and 59,347 is: 81,895.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,884.60 : 128,174.70 = 59,347 : x
  2. Step 2: Convert to fraction form
    92,884.60/128,174.70 = 59,347/x
  3. Step 3: Cross multiply
    92,884.60x = 128,174.70 × 59,347
  4. Step 4: Simplify right side
    92,884.60x = 7,606,783,920.90
  5. Step 5: Solve for x
    x = 7,606,783,920.90/92,884.60
  6. Step 6: Final answer
    x = 81,895.00

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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.