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Finding the Fourth Proportional to 97,760.95, 134,909.07 and 54,740.84

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Solution

The fourth proportional to 97,760.95, 134,909.07 and 54,740.84 is: 75,541.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,760.95 : 134,909.07 = 54,740.84 : x
  2. Step 2: Convert to fraction form
    97,760.95/134,909.07 = 54,740.84/x
  3. Step 3: Cross multiply
    97,760.95x = 134,909.07 × 54,740.84
  4. Step 4: Simplify right side
    97,760.95x = 7,385,035,815.42
  5. Step 5: Solve for x
    x = 7,385,035,815.42/97,760.95
  6. Step 6: Final answer
    x = 75,541.78

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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.