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Finding the Fourth Proportional to 286,744.16, 429,847.57 and 97,071.86

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Solution

The fourth proportional to 286,744.16, 429,847.57 and 97,071.86 is: 145,516.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,744.16 : 429,847.57 = 97,071.86 : x
  2. Step 2: Convert to fraction form
    286,744.16/429,847.57 = 97,071.86/x
  3. Step 3: Cross multiply
    286,744.16x = 429,847.57 × 97,071.86
  4. Step 4: Simplify right side
    286,744.16x = 41,726,103,136.38
  5. Step 5: Solve for x
    x = 41,726,103,136.38/286,744.16
  6. Step 6: Final answer
    x = 145,516.84

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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.