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Finding the Fourth Proportional to 358,489.08, 537,548.31 and 105,737.40

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Solution

The fourth proportional to 358,489.08, 537,548.31 and 105,737.40 is: 158,551.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,489.08 : 537,548.31 = 105,737.40 : x
  2. Step 2: Convert to fraction form
    358,489.08/537,548.31 = 105,737.40/x
  3. Step 3: Cross multiply
    358,489.08x = 537,548.31 × 105,737.40
  4. Step 4: Simplify right side
    358,489.08x = 56,838,960,673.79
  5. Step 5: Solve for x
    x = 56,838,960,673.79/358,489.08
  6. Step 6: Final answer
    x = 158,551.44

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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.