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Finding the Fourth Proportional to 111,437.42, 153,783.62 and 63,038.31

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Solution

The fourth proportional to 111,437.42, 153,783.62 and 63,038.31 is: 86,992.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,437.42 : 153,783.62 = 63,038.31 : x
  2. Step 2: Convert to fraction form
    111,437.42/153,783.62 = 63,038.31/x
  3. Step 3: Cross multiply
    111,437.42x = 153,783.62 × 63,038.31
  4. Step 4: Simplify right side
    111,437.42x = 9,694,259,283.62
  5. Step 5: Solve for x
    x = 9,694,259,283.62/111,437.42
  6. Step 6: Final answer
    x = 86,992.86

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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.