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Finding the Fourth Proportional to 103,602.06, 155,403.06 and 68,533.52

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Solution

The fourth proportional to 103,602.06, 155,403.06 and 68,533.52 is: 102,800.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,602.06 : 155,403.06 = 68,533.52 : x
  2. Step 2: Convert to fraction form
    103,602.06/155,403.06 = 68,533.52/x
  3. Step 3: Cross multiply
    103,602.06x = 155,403.06 × 68,533.52
  4. Step 4: Simplify right side
    103,602.06x = 10,650,317,943.56
  5. Step 5: Solve for x
    x = 10,650,317,943.56/103,602.06
  6. Step 6: Final answer
    x = 102,800.25

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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.