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Finding the Fourth Proportional to 266,292.51, 367,485.71 and 145,431.60

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Solution

The fourth proportional to 266,292.51, 367,485.71 and 145,431.60 is: 200,696.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,292.51 : 367,485.71 = 145,431.60 : x
  2. Step 2: Convert to fraction form
    266,292.51/367,485.71 = 145,431.60/x
  3. Step 3: Cross multiply
    266,292.51x = 367,485.71 × 145,431.60
  4. Step 4: Simplify right side
    266,292.51x = 53,444,034,055.28
  5. Step 5: Solve for x
    x = 53,444,034,055.28/266,292.51
  6. Step 6: Final answer
    x = 200,696.72

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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.