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Finding the Fourth Proportional to 233,128.86, 349,693.04 and 92,985.90

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Solution

The fourth proportional to 233,128.86, 349,693.04 and 92,985.90 is: 139,478.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,128.86 : 349,693.04 = 92,985.90 : x
  2. Step 2: Convert to fraction form
    233,128.86/349,693.04 = 92,985.90/x
  3. Step 3: Cross multiply
    233,128.86x = 349,693.04 × 92,985.90
  4. Step 4: Simplify right side
    233,128.86x = 32,516,522,048.14
  5. Step 5: Solve for x
    x = 32,516,522,048.14/233,128.86
  6. Step 6: Final answer
    x = 139,478.75

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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.