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Finding the Fourth Proportional to 228,312.72, 342,448.02 and 70,525.53

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Solution

The fourth proportional to 228,312.72, 342,448.02 and 70,525.53 is: 105,781.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,312.72 : 342,448.02 = 70,525.53 : x
  2. Step 2: Convert to fraction form
    228,312.72/342,448.02 = 70,525.53/x
  3. Step 3: Cross multiply
    228,312.72x = 342,448.02 × 70,525.53
  4. Step 4: Simplify right side
    228,312.72x = 24,151,328,107.95
  5. Step 5: Solve for x
    x = 24,151,328,107.95/228,312.72
  6. Step 6: Final answer
    x = 105,781.79

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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.