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Finding the Fourth Proportional to 113,614.70, 156,799.95 and 68,307.44

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Solution

The fourth proportional to 113,614.70, 156,799.95 and 68,307.44 is: 94,271.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,614.70 : 156,799.95 = 68,307.44 : x
  2. Step 2: Convert to fraction form
    113,614.70/156,799.95 = 68,307.44/x
  3. Step 3: Cross multiply
    113,614.70x = 156,799.95 × 68,307.44
  4. Step 4: Simplify right side
    113,614.70x = 10,710,603,176.63
  5. Step 5: Solve for x
    x = 10,710,603,176.63/113,614.70
  6. Step 6: Final answer
    x = 94,271.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.