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Finding the Fourth Proportional to 133,511.50, 184,246.05 and 83,210.50

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Solution

The fourth proportional to 133,511.50, 184,246.05 and 83,210.50 is: 114,830.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,511.50 : 184,246.05 = 83,210.50 : x
  2. Step 2: Convert to fraction form
    133,511.50/184,246.05 = 83,210.50/x
  3. Step 3: Cross multiply
    133,511.50x = 184,246.05 × 83,210.50
  4. Step 4: Simplify right side
    133,511.50x = 15,331,205,943.53
  5. Step 5: Solve for x
    x = 15,331,205,943.53/133,511.50
  6. Step 6: Final answer
    x = 114,830.60

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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.