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Finding the Fourth Proportional to 115,511.60, 173,267.40 and 65,572.40

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Solution

The fourth proportional to 115,511.60, 173,267.40 and 65,572.40 is: 98,358.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,511.60 : 173,267.40 = 65,572.40 : x
  2. Step 2: Convert to fraction form
    115,511.60/173,267.40 = 65,572.40/x
  3. Step 3: Cross multiply
    115,511.60x = 173,267.40 × 65,572.40
  4. Step 4: Simplify right side
    115,511.60x = 11,361,559,259.76
  5. Step 5: Solve for x
    x = 11,361,559,259.76/115,511.60
  6. Step 6: Final answer
    x = 98,358.60

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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.