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Finding the Fourth Proportional to 92,883.95, 128,232.99 and 61,145.12

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Solution

The fourth proportional to 92,883.95, 128,232.99 and 61,145.12 is: 84,415.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,883.95 : 128,232.99 = 61,145.12 : x
  2. Step 2: Convert to fraction form
    92,883.95/128,232.99 = 61,145.12/x
  3. Step 3: Cross multiply
    92,883.95x = 128,232.99 × 61,145.12
  4. Step 4: Simplify right side
    92,883.95x = 7,840,820,920.34
  5. Step 5: Solve for x
    x = 7,840,820,920.34/92,883.95
  6. Step 6: Final answer
    x = 84,415.24

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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.