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Finding the Fourth Proportional to 110,701.80, 166,052.70 and 77,459.40

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Solution

The fourth proportional to 110,701.80, 166,052.70 and 77,459.40 is: 116,189.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,701.80 : 166,052.70 = 77,459.40 : x
  2. Step 2: Convert to fraction form
    110,701.80/166,052.70 = 77,459.40/x
  3. Step 3: Cross multiply
    110,701.80x = 166,052.70 × 77,459.40
  4. Step 4: Simplify right side
    110,701.80x = 12,862,342,510.38
  5. Step 5: Solve for x
    x = 12,862,342,510.38/110,701.80
  6. Step 6: Final answer
    x = 116,189.10

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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.