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Finding the Fourth Proportional to 98,914.60, 148,371.90 and 95,415.40

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Solution

The fourth proportional to 98,914.60, 148,371.90 and 95,415.40 is: 143,123.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,914.60 : 148,371.90 = 95,415.40 : x
  2. Step 2: Convert to fraction form
    98,914.60/148,371.90 = 95,415.40/x
  3. Step 3: Cross multiply
    98,914.60x = 148,371.90 × 95,415.40
  4. Step 4: Simplify right side
    98,914.60x = 14,156,964,187.26
  5. Step 5: Solve for x
    x = 14,156,964,187.26/98,914.60
  6. Step 6: Final answer
    x = 143,123.10

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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.