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Finding the Fourth Proportional to 188,686.32, 260,494.62 and 125,110.08

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Solution

The fourth proportional to 188,686.32, 260,494.62 and 125,110.08 is: 172,723.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,686.32 : 260,494.62 = 125,110.08 : x
  2. Step 2: Convert to fraction form
    188,686.32/260,494.62 = 125,110.08/x
  3. Step 3: Cross multiply
    188,686.32x = 260,494.62 × 125,110.08
  4. Step 4: Simplify right side
    188,686.32x = 32,590,502,747.77
  5. Step 5: Solve for x
    x = 32,590,502,747.77/188,686.32
  6. Step 6: Final answer
    x = 172,723.19

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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.