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Finding the Fourth Proportional to 216,070.90, 324,106.35 and 58,299.35

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Solution

The fourth proportional to 216,070.90, 324,106.35 and 58,299.35 is: 87,449.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,070.90 : 324,106.35 = 58,299.35 : x
  2. Step 2: Convert to fraction form
    216,070.90/324,106.35 = 58,299.35/x
  3. Step 3: Cross multiply
    216,070.90x = 324,106.35 × 58,299.35
  4. Step 4: Simplify right side
    216,070.90x = 18,895,191,111.38
  5. Step 5: Solve for x
    x = 18,895,191,111.38/216,070.90
  6. Step 6: Final answer
    x = 87,449.03

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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.