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Finding the Fourth Proportional to 245,927.20, 368,890.80 and 152,615.20

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Solution

The fourth proportional to 245,927.20, 368,890.80 and 152,615.20 is: 228,922.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,927.20 : 368,890.80 = 152,615.20 : x
  2. Step 2: Convert to fraction form
    245,927.20/368,890.80 = 152,615.20/x
  3. Step 3: Cross multiply
    245,927.20x = 368,890.80 × 152,615.20
  4. Step 4: Simplify right side
    245,927.20x = 56,298,343,220.16
  5. Step 5: Solve for x
    x = 56,298,343,220.16/245,927.20
  6. Step 6: Final answer
    x = 228,922.80

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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.