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Finding the Fourth Proportional to 102,915.48, 154,373.22 and 29,043.48

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Solution

The fourth proportional to 102,915.48, 154,373.22 and 29,043.48 is: 43,565.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,915.48 : 154,373.22 = 29,043.48 : x
  2. Step 2: Convert to fraction form
    102,915.48/154,373.22 = 29,043.48/x
  3. Step 3: Cross multiply
    102,915.48x = 154,373.22 × 29,043.48
  4. Step 4: Simplify right side
    102,915.48x = 4,483,535,527.61
  5. Step 5: Solve for x
    x = 4,483,535,527.61/102,915.48
  6. Step 6: Final answer
    x = 43,565.22

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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.