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Finding the Fourth Proportional to 286,417.01, 429,687.48 and 108,927.38

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Solution

The fourth proportional to 286,417.01, 429,687.48 and 108,927.38 is: 163,414.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,417.01 : 429,687.48 = 108,927.38 : x
  2. Step 2: Convert to fraction form
    286,417.01/429,687.48 = 108,927.38/x
  3. Step 3: Cross multiply
    286,417.01x = 429,687.48 × 108,927.38
  4. Step 4: Simplify right side
    286,417.01x = 46,804,732,897.90
  5. Step 5: Solve for x
    x = 46,804,732,897.90/286,417.01
  6. Step 6: Final answer
    x = 163,414.64

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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.