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Finding the Fourth Proportional to 111,123, 153,319.44 and 63,358.92

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Solution

The fourth proportional to 111,123, 153,319.44 and 63,358.92 is: 87,418.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,123 : 153,319.44 = 63,358.92 : x
  2. Step 2: Convert to fraction form
    111,123/153,319.44 = 63,358.92/x
  3. Step 3: Cross multiply
    111,123x = 153,319.44 × 63,358.92
  4. Step 4: Simplify right side
    111,123x = 9,714,154,133.40
  5. Step 5: Solve for x
    x = 9,714,154,133.40/111,123
  6. Step 6: Final answer
    x = 87,418.03

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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.