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Finding the Fourth Proportional to 181,605.80, 250,646.52 and 105,126.92

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Solution

The fourth proportional to 181,605.80, 250,646.52 and 105,126.92 is: 145,092.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,605.80 : 250,646.52 = 105,126.92 : x
  2. Step 2: Convert to fraction form
    181,605.80/250,646.52 = 105,126.92/x
  3. Step 3: Cross multiply
    181,605.80x = 250,646.52 × 105,126.92
  4. Step 4: Simplify right side
    181,605.80x = 26,349,696,656.32
  5. Step 5: Solve for x
    x = 26,349,696,656.32/181,605.80
  6. Step 6: Final answer
    x = 145,092.81

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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.