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Finding the Fourth Proportional to 74,600.87, 102,970.94 and 48,763.17

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Solution

The fourth proportional to 74,600.87, 102,970.94 and 48,763.17 is: 67,307.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,600.87 : 102,970.94 = 48,763.17 : x
  2. Step 2: Convert to fraction form
    74,600.87/102,970.94 = 48,763.17/x
  3. Step 3: Cross multiply
    74,600.87x = 102,970.94 × 48,763.17
  4. Step 4: Simplify right side
    74,600.87x = 5,021,189,208.46
  5. Step 5: Solve for x
    x = 5,021,189,208.46/74,600.87
  6. Step 6: Final answer
    x = 67,307.39

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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.