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Finding the Fourth Proportional to 255,457.60, 352,531.20 and 148,089.92

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Solution

The fourth proportional to 255,457.60, 352,531.20 and 148,089.92 is: 204,363.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,457.60 : 352,531.20 = 148,089.92 : x
  2. Step 2: Convert to fraction form
    255,457.60/352,531.20 = 148,089.92/x
  3. Step 3: Cross multiply
    255,457.60x = 352,531.20 × 148,089.92
  4. Step 4: Simplify right side
    255,457.60x = 52,206,317,205.50
  5. Step 5: Solve for x
    x = 52,206,317,205.50/255,457.60
  6. Step 6: Final answer
    x = 204,363.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.