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Finding the Fourth Proportional to 91,080.80, 136,573.92 and 34,904.24

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Solution

The fourth proportional to 91,080.80, 136,573.92 and 34,904.24 is: 52,338.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,080.80 : 136,573.92 = 34,904.24 : x
  2. Step 2: Convert to fraction form
    91,080.80/136,573.92 = 34,904.24/x
  3. Step 3: Cross multiply
    91,080.80x = 136,573.92 × 34,904.24
  4. Step 4: Simplify right side
    91,080.80x = 4,767,008,881.42
  5. Step 5: Solve for x
    x = 4,767,008,881.42/91,080.80
  6. Step 6: Final answer
    x = 52,338.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.