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Finding the Fourth Proportional to 95,425.40, 143,138.10 and 42,937.40

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Solution

The fourth proportional to 95,425.40, 143,138.10 and 42,937.40 is: 64,406.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,425.40 : 143,138.10 = 42,937.40 : x
  2. Step 2: Convert to fraction form
    95,425.40/143,138.10 = 42,937.40/x
  3. Step 3: Cross multiply
    95,425.40x = 143,138.10 × 42,937.40
  4. Step 4: Simplify right side
    95,425.40x = 6,145,977,854.94
  5. Step 5: Solve for x
    x = 6,145,977,854.94/95,425.40
  6. Step 6: Final answer
    x = 64,406.10

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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.