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Finding the Fourth Proportional to 111,200.60, 153,467.81 and 63,461.12

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Solution

The fourth proportional to 111,200.60, 153,467.81 and 63,461.12 is: 87,582.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,200.60 : 153,467.81 = 63,461.12 : x
  2. Step 2: Convert to fraction form
    111,200.60/153,467.81 = 63,461.12/x
  3. Step 3: Cross multiply
    111,200.60x = 153,467.81 × 63,461.12
  4. Step 4: Simplify right side
    111,200.60x = 9,739,239,480.11
  5. Step 5: Solve for x
    x = 9,739,239,480.11/111,200.60
  6. Step 6: Final answer
    x = 87,582.62

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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.