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Finding the Fourth Proportional to 99,613.80, 149,420.70 and 37,276.20

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Solution

The fourth proportional to 99,613.80, 149,420.70 and 37,276.20 is: 55,914.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,613.80 : 149,420.70 = 37,276.20 : x
  2. Step 2: Convert to fraction form
    99,613.80/149,420.70 = 37,276.20/x
  3. Step 3: Cross multiply
    99,613.80x = 149,420.70 × 37,276.20
  4. Step 4: Simplify right side
    99,613.80x = 5,569,835,897.34
  5. Step 5: Solve for x
    x = 5,569,835,897.34/99,613.80
  6. Step 6: Final answer
    x = 55,914.30

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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.