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Finding the Fourth Proportional to 98,123.60, 146,893.80 and 58,660.40

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Solution

The fourth proportional to 98,123.60, 146,893.80 and 58,660.40 is: 87,816.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,123.60 : 146,893.80 = 58,660.40 : x
  2. Step 2: Convert to fraction form
    98,123.60/146,893.80 = 58,660.40/x
  3. Step 3: Cross multiply
    98,123.60x = 146,893.80 × 58,660.40
  4. Step 4: Simplify right side
    98,123.60x = 8,616,849,065.52
  5. Step 5: Solve for x
    x = 8,616,849,065.52/98,123.60
  6. Step 6: Final answer
    x = 87,816.28

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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.