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Finding the Fourth Proportional to 247,980.96, 371,915.55 and 70,484.04

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Solution

The fourth proportional to 247,980.96, 371,915.55 and 70,484.04 is: 105,710.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,980.96 : 371,915.55 = 70,484.04 : x
  2. Step 2: Convert to fraction form
    247,980.96/371,915.55 = 70,484.04/x
  3. Step 3: Cross multiply
    247,980.96x = 371,915.55 × 70,484.04
  4. Step 4: Simplify right side
    247,980.96x = 26,214,110,502.82
  5. Step 5: Solve for x
    x = 26,214,110,502.82/247,980.96
  6. Step 6: Final answer
    x = 105,710.17

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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.