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Finding the Fourth Proportional to 111,266.16, 153,532.32 and 63,516.48

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Solution

The fourth proportional to 111,266.16, 153,532.32 and 63,516.48 is: 87,644.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,266.16 : 153,532.32 = 63,516.48 : x
  2. Step 2: Convert to fraction form
    111,266.16/153,532.32 = 63,516.48/x
  3. Step 3: Cross multiply
    111,266.16x = 153,532.32 × 63,516.48
  4. Step 4: Simplify right side
    111,266.16x = 9,751,832,532.63
  5. Step 5: Solve for x
    x = 9,751,832,532.63/111,266.16
  6. Step 6: Final answer
    x = 87,644.19

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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.