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Finding the Fourth Proportional to 109,612.88, 151,265.80 and 59,312.08

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Solution

The fourth proportional to 109,612.88, 151,265.80 and 59,312.08 is: 81,850.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,612.88 : 151,265.80 = 59,312.08 : x
  2. Step 2: Convert to fraction form
    109,612.88/151,265.80 = 59,312.08/x
  3. Step 3: Cross multiply
    109,612.88x = 151,265.80 × 59,312.08
  4. Step 4: Simplify right side
    109,612.88x = 8,971,889,230.86
  5. Step 5: Solve for x
    x = 8,971,889,230.86/109,612.88
  6. Step 6: Final answer
    x = 81,850.68

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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.