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Finding the Fourth Proportional to 310,970.20, 466,455.30 and 248,762.20

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Solution

The fourth proportional to 310,970.20, 466,455.30 and 248,762.20 is: 373,143.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,970.20 : 466,455.30 = 248,762.20 : x
  2. Step 2: Convert to fraction form
    310,970.20/466,455.30 = 248,762.20/x
  3. Step 3: Cross multiply
    310,970.20x = 466,455.30 × 248,762.20
  4. Step 4: Simplify right side
    310,970.20x = 116,036,446,629.66
  5. Step 5: Solve for x
    x = 116,036,446,629.66/310,970.20
  6. Step 6: Final answer
    x = 373,143.30

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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.