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Finding the Fourth Proportional to 370,498.74, 555,795.21 and 117,689.04

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Solution

The fourth proportional to 370,498.74, 555,795.21 and 117,689.04 is: 176,548.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,498.74 : 555,795.21 = 117,689.04 : x
  2. Step 2: Convert to fraction form
    370,498.74/555,795.21 = 117,689.04/x
  3. Step 3: Cross multiply
    370,498.74x = 555,795.21 × 117,689.04
  4. Step 4: Simplify right side
    370,498.74x = 65,411,004,701.50
  5. Step 5: Solve for x
    x = 65,411,004,701.50/370,498.74
  6. Step 6: Final answer
    x = 176,548.52

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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.