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Finding the Fourth Proportional to 103,026.60, 154,466.10 and 39,792.60

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Solution

The fourth proportional to 103,026.60, 154,466.10 and 39,792.60 is: 59,660.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,026.60 : 154,466.10 = 39,792.60 : x
  2. Step 2: Convert to fraction form
    103,026.60/154,466.10 = 39,792.60/x
  3. Step 3: Cross multiply
    103,026.60x = 154,466.10 × 39,792.60
  4. Step 4: Simplify right side
    103,026.60x = 6,146,607,730.86
  5. Step 5: Solve for x
    x = 6,146,607,730.86/103,026.60
  6. Step 6: Final answer
    x = 59,660.40

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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.