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Finding the Fourth Proportional to 113,380.80, 170,071.20 and 63,614.40

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Solution

The fourth proportional to 113,380.80, 170,071.20 and 63,614.40 is: 95,421.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,380.80 : 170,071.20 = 63,614.40 : x
  2. Step 2: Convert to fraction form
    113,380.80/170,071.20 = 63,614.40/x
  3. Step 3: Cross multiply
    113,380.80x = 170,071.20 × 63,614.40
  4. Step 4: Simplify right side
    113,380.80x = 10,818,977,345.28
  5. Step 5: Solve for x
    x = 10,818,977,345.28/113,380.80
  6. Step 6: Final answer
    x = 95,421.60

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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.