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Finding the Fourth Proportional to 537,513.50, 806,386.86 and 163,526.78

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Solution

The fourth proportional to 537,513.50, 806,386.86 and 163,526.78 is: 245,325.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,513.50 : 806,386.86 = 163,526.78 : x
  2. Step 2: Convert to fraction form
    537,513.50/806,386.86 = 163,526.78/x
  3. Step 3: Cross multiply
    537,513.50x = 806,386.86 × 163,526.78
  4. Step 4: Simplify right side
    537,513.50x = 131,865,846,650.11
  5. Step 5: Solve for x
    x = 131,865,846,650.11/537,513.50
  6. Step 6: Final answer
    x = 245,325.65

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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.