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Finding the Fourth Proportional to 103,517.98, 155,166.24 and 53,547.76

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Solution

The fourth proportional to 103,517.98, 155,166.24 and 53,547.76 is: 80,264.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,517.98 : 155,166.24 = 53,547.76 : x
  2. Step 2: Convert to fraction form
    103,517.98/155,166.24 = 53,547.76/x
  3. Step 3: Cross multiply
    103,517.98x = 155,166.24 × 53,547.76
  4. Step 4: Simplify right side
    103,517.98x = 8,308,804,579.62
  5. Step 5: Solve for x
    x = 8,308,804,579.62/103,517.98
  6. Step 6: Final answer
    x = 80,264.36

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1.5x scale

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.