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Finding the Fourth Proportional to 302,681.94, 417,703.89 and 166,716.38

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Solution

The fourth proportional to 302,681.94, 417,703.89 and 166,716.38 is: 230,070.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,681.94 : 417,703.89 = 166,716.38 : x
  2. Step 2: Convert to fraction form
    302,681.94/417,703.89 = 166,716.38/x
  3. Step 3: Cross multiply
    302,681.94x = 417,703.89 × 166,716.38
  4. Step 4: Simplify right side
    302,681.94x = 69,638,080,452.72
  5. Step 5: Solve for x
    x = 69,638,080,452.72/302,681.94
  6. Step 6: Final answer
    x = 230,070.15

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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.