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Finding the Fourth Proportional to 99,203.60, 148,632.60 and 83,651.60

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Solution

The fourth proportional to 99,203.60, 148,632.60 and 83,651.60 is: 125,331.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,203.60 : 148,632.60 = 83,651.60 : x
  2. Step 2: Convert to fraction form
    99,203.60/148,632.60 = 83,651.60/x
  3. Step 3: Cross multiply
    99,203.60x = 148,632.60 × 83,651.60
  4. Step 4: Simplify right side
    99,203.60x = 12,433,354,802.16
  5. Step 5: Solve for x
    x = 12,433,354,802.16/99,203.60
  6. Step 6: Final answer
    x = 125,331.69

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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.