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Finding the Fourth Proportional to 286,036.17, 429,118.05 and 93,919.16

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Solution

The fourth proportional to 286,036.17, 429,118.05 and 93,919.16 is: 140,899.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,036.17 : 429,118.05 = 93,919.16 : x
  2. Step 2: Convert to fraction form
    286,036.17/429,118.05 = 93,919.16/x
  3. Step 3: Cross multiply
    286,036.17x = 429,118.05 × 93,919.16
  4. Step 4: Simplify right side
    286,036.17x = 40,302,404,181.65
  5. Step 5: Solve for x
    x = 40,302,404,181.65/286,036.17
  6. Step 6: Final answer
    x = 140,899.68

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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.