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Finding the Fourth Proportional to 98,211.60, 147,025.80 and 58,748.40

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Solution

The fourth proportional to 98,211.60, 147,025.80 and 58,748.40 is: 87,948.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,211.60 : 147,025.80 = 58,748.40 : x
  2. Step 2: Convert to fraction form
    98,211.60/147,025.80 = 58,748.40/x
  3. Step 3: Cross multiply
    98,211.60x = 147,025.80 × 58,748.40
  4. Step 4: Simplify right side
    98,211.60x = 8,637,530,508.72
  5. Step 5: Solve for x
    x = 8,637,530,508.72/98,211.60
  6. Step 6: Final answer
    x = 87,948.17

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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.