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Finding the Fourth Proportional to 99,566.90, 149,641.95 and 97,817.30

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Solution

The fourth proportional to 99,566.90, 149,641.95 and 97,817.30 is: 147,012.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,566.90 : 149,641.95 = 97,817.30 : x
  2. Step 2: Convert to fraction form
    99,566.90/149,641.95 = 97,817.30/x
  3. Step 3: Cross multiply
    99,566.90x = 149,641.95 × 97,817.30
  4. Step 4: Simplify right side
    99,566.90x = 14,637,571,515.74
  5. Step 5: Solve for x
    x = 14,637,571,515.74/99,566.90
  6. Step 6: Final answer
    x = 147,012.43

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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.