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Finding the Fourth Proportional to 239,792.70, 359,688.96 and 71,312.34

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Solution

The fourth proportional to 239,792.70, 359,688.96 and 71,312.34 is: 106,968.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,792.70 : 359,688.96 = 71,312.34 : x
  2. Step 2: Convert to fraction form
    239,792.70/359,688.96 = 71,312.34/x
  3. Step 3: Cross multiply
    239,792.70x = 359,688.96 × 71,312.34
  4. Step 4: Simplify right side
    239,792.70x = 25,650,261,409.77
  5. Step 5: Solve for x
    x = 25,650,261,409.77/239,792.70
  6. Step 6: Final answer
    x = 106,968.48

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1.5x scale

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.