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Finding the Fourth Proportional to 95,246.40, 142,869.60 and 42,758.40

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Solution

The fourth proportional to 95,246.40, 142,869.60 and 42,758.40 is: 64,137.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,246.40 : 142,869.60 = 42,758.40 : x
  2. Step 2: Convert to fraction form
    95,246.40/142,869.60 = 42,758.40/x
  3. Step 3: Cross multiply
    95,246.40x = 142,869.60 × 42,758.40
  4. Step 4: Simplify right side
    95,246.40x = 6,108,875,504.64
  5. Step 5: Solve for x
    x = 6,108,875,504.64/95,246.40
  6. Step 6: Final answer
    x = 64,137.60

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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.