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Finding the Fourth Proportional to 181,858.49, 250,964.57 and 105,421.86

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Solution

The fourth proportional to 181,858.49, 250,964.57 and 105,421.86 is: 145,482.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,858.49 : 250,964.57 = 105,421.86 : x
  2. Step 2: Convert to fraction form
    181,858.49/250,964.57 = 105,421.86/x
  3. Step 3: Cross multiply
    181,858.49x = 250,964.57 × 105,421.86
  4. Step 4: Simplify right side
    181,858.49x = 26,457,151,335.32
  5. Step 5: Solve for x
    x = 26,457,151,335.32/181,858.49
  6. Step 6: Final answer
    x = 145,482.08

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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.