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Finding the Fourth Proportional to 358,420.41, 537,718.10 and 109,102.41

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Solution

The fourth proportional to 358,420.41, 537,718.10 and 109,102.41 is: 163,680.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,420.41 : 537,718.10 = 109,102.41 : x
  2. Step 2: Convert to fraction form
    358,420.41/537,718.10 = 109,102.41/x
  3. Step 3: Cross multiply
    358,420.41x = 537,718.10 × 109,102.41
  4. Step 4: Simplify right side
    358,420.41x = 58,666,340,065.11
  5. Step 5: Solve for x
    x = 58,666,340,065.11/358,420.41
  6. Step 6: Final answer
    x = 163,680.24

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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.