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Finding the Fourth Proportional to 153,585.40, 211,933.02 and 92,349.40

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Solution

The fourth proportional to 153,585.40, 211,933.02 and 92,349.40 is: 127,433.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,585.40 : 211,933.02 = 92,349.40 : x
  2. Step 2: Convert to fraction form
    153,585.40/211,933.02 = 92,349.40/x
  3. Step 3: Cross multiply
    153,585.40x = 211,933.02 × 92,349.40
  4. Step 4: Simplify right side
    153,585.40x = 19,571,887,237.19
  5. Step 5: Solve for x
    x = 19,571,887,237.19/153,585.40
  6. Step 6: Final answer
    x = 127,433.25

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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.