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Finding the Fourth Proportional to 153,613.32, 230,458.86 and 42,805.32

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Solution

The fourth proportional to 153,613.32, 230,458.86 and 42,805.32 is: 64,218.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,613.32 : 230,458.86 = 42,805.32 : x
  2. Step 2: Convert to fraction form
    153,613.32/230,458.86 = 42,805.32/x
  3. Step 3: Cross multiply
    153,613.32x = 230,458.86 × 42,805.32
  4. Step 4: Simplify right side
    153,613.32x = 9,864,865,249.14
  5. Step 5: Solve for x
    x = 9,864,865,249.14/153,613.32
  6. Step 6: Final answer
    x = 64,218.81

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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.