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Finding the Fourth Proportional to 153,349.64, 211,645.12 and 92,099.96

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Solution

The fourth proportional to 153,349.64, 211,645.12 and 92,099.96 is: 127,111.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,349.64 : 211,645.12 = 92,099.96 : x
  2. Step 2: Convert to fraction form
    153,349.64/211,645.12 = 92,099.96/x
  3. Step 3: Cross multiply
    153,349.64x = 211,645.12 × 92,099.96
  4. Step 4: Simplify right side
    153,349.64x = 19,492,507,086.20
  5. Step 5: Solve for x
    x = 19,492,507,086.20/153,349.64
  6. Step 6: Final answer
    x = 127,111.53

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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.