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Finding the Fourth Proportional to 245,900.80, 368,851.20 and 88,307.20

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Solution

The fourth proportional to 245,900.80, 368,851.20 and 88,307.20 is: 132,460.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,900.80 : 368,851.20 = 88,307.20 : x
  2. Step 2: Convert to fraction form
    245,900.80/368,851.20 = 88,307.20/x
  3. Step 3: Cross multiply
    245,900.80x = 368,851.20 × 88,307.20
  4. Step 4: Simplify right side
    245,900.80x = 32,572,216,688.64
  5. Step 5: Solve for x
    x = 32,572,216,688.64/245,900.80
  6. Step 6: Final answer
    x = 132,460.80

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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.