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Finding the Fourth Proportional to 103,483.91, 155,102.85 and 92,904.30

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Solution

The fourth proportional to 103,483.91, 155,102.85 and 92,904.30 is: 139,246.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,483.91 : 155,102.85 = 92,904.30 : x
  2. Step 2: Convert to fraction form
    103,483.91/155,102.85 = 92,904.30/x
  3. Step 3: Cross multiply
    103,483.91x = 155,102.85 × 92,904.30
  4. Step 4: Simplify right side
    103,483.91x = 14,409,721,707.26
  5. Step 5: Solve for x
    x = 14,409,721,707.26/103,483.91
  6. Step 6: Final answer
    x = 139,246.01

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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.