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Finding the Fourth Proportional to 136,051.60, 187,743.16 and 75,620.16

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Solution

The fourth proportional to 136,051.60, 187,743.16 and 75,620.16 is: 104,351.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,051.60 : 187,743.16 = 75,620.16 : x
  2. Step 2: Convert to fraction form
    136,051.60/187,743.16 = 75,620.16/x
  3. Step 3: Cross multiply
    136,051.60x = 187,743.16 × 75,620.16
  4. Step 4: Simplify right side
    136,051.60x = 14,197,167,798.11
  5. Step 5: Solve for x
    x = 14,197,167,798.11/136,051.60
  6. Step 6: Final answer
    x = 104,351.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.