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Finding the Fourth Proportional to 286,097.52, 429,186.39 and 86,395.26

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Solution

The fourth proportional to 286,097.52, 429,186.39 and 86,395.26 is: 129,605.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,097.52 : 429,186.39 = 86,395.26 : x
  2. Step 2: Convert to fraction form
    286,097.52/429,186.39 = 86,395.26/x
  3. Step 3: Cross multiply
    286,097.52x = 429,186.39 × 86,395.26
  4. Step 4: Simplify right side
    286,097.52x = 37,079,669,752.51
  5. Step 5: Solve for x
    x = 37,079,669,752.51/286,097.52
  6. Step 6: Final answer
    x = 129,605.00

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1.5x scale

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.