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Finding the Fourth Proportional to 103,475.81, 155,905.16 and 93,492.16

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Solution

The fourth proportional to 103,475.81, 155,905.16 and 93,492.16 is: 140,862.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,475.81 : 155,905.16 = 93,492.16 : x
  2. Step 2: Convert to fraction form
    103,475.81/155,905.16 = 93,492.16/x
  3. Step 3: Cross multiply
    103,475.81x = 155,905.16 × 93,492.16
  4. Step 4: Simplify right side
    103,475.81x = 14,575,910,095.16
  5. Step 5: Solve for x
    x = 14,575,910,095.16/103,475.81
  6. Step 6: Final answer
    x = 140,862.97

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.