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Finding the Fourth Proportional to 370,335.98, 555,485.36 and 130,461.76

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Solution

The fourth proportional to 370,335.98, 555,485.36 and 130,461.76 is: 195,686.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,335.98 : 555,485.36 = 130,461.76 : x
  2. Step 2: Convert to fraction form
    370,335.98/555,485.36 = 130,461.76/x
  3. Step 3: Cross multiply
    370,335.98x = 555,485.36 × 130,461.76
  4. Step 4: Simplify right side
    370,335.98x = 72,469,597,719.83
  5. Step 5: Solve for x
    x = 72,469,597,719.83/370,335.98
  6. Step 6: Final answer
    x = 195,686.08

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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.