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Finding the Fourth Proportional to 100,613.60, 150,920.40 and 99,058.40

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Solution

The fourth proportional to 100,613.60, 150,920.40 and 99,058.40 is: 148,587.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,613.60 : 150,920.40 = 99,058.40 : x
  2. Step 2: Convert to fraction form
    100,613.60/150,920.40 = 99,058.40/x
  3. Step 3: Cross multiply
    100,613.60x = 150,920.40 × 99,058.40
  4. Step 4: Simplify right side
    100,613.60x = 14,949,933,351.36
  5. Step 5: Solve for x
    x = 14,949,933,351.36/100,613.60
  6. Step 6: Final answer
    x = 148,587.60

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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.