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Finding the Fourth Proportional to 354,309.60, 532,078.80 and 249,861.60

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Solution

The fourth proportional to 354,309.60, 532,078.80 and 249,861.60 is: 375,225.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,309.60 : 532,078.80 = 249,861.60 : x
  2. Step 2: Convert to fraction form
    354,309.60/532,078.80 = 249,861.60/x
  3. Step 3: Cross multiply
    354,309.60x = 532,078.80 × 249,861.60
  4. Step 4: Simplify right side
    354,309.60x = 132,946,060,294.08
  5. Step 5: Solve for x
    x = 132,946,060,294.08/354,309.60
  6. Step 6: Final answer
    x = 375,225.68

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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.