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Finding the Fourth Proportional to 101,915.10, 152,865.45 and 35,339.10

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Solution

The fourth proportional to 101,915.10, 152,865.45 and 35,339.10 is: 53,006.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,915.10 : 152,865.45 = 35,339.10 : x
  2. Step 2: Convert to fraction form
    101,915.10/152,865.45 = 35,339.10/x
  3. Step 3: Cross multiply
    101,915.10x = 152,865.45 × 35,339.10
  4. Step 4: Simplify right side
    101,915.10x = 5,402,127,424.10
  5. Step 5: Solve for x
    x = 5,402,127,424.10/101,915.10
  6. Step 6: Final answer
    x = 53,006.15

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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.