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Finding the Fourth Proportional to 342,326.10, 513,489.15 and 93,008.10

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Solution

The fourth proportional to 342,326.10, 513,489.15 and 93,008.10 is: 139,512.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,326.10 : 513,489.15 = 93,008.10 : x
  2. Step 2: Convert to fraction form
    342,326.10/513,489.15 = 93,008.10/x
  3. Step 3: Cross multiply
    342,326.10x = 513,489.15 × 93,008.10
  4. Step 4: Simplify right side
    342,326.10x = 47,758,650,212.12
  5. Step 5: Solve for x
    x = 47,758,650,212.12/342,326.10
  6. Step 6: Final answer
    x = 139,512.15

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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.