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Finding the Fourth Proportional to 153,833.32, 212,386.08 and 117,954.40

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Solution

The fourth proportional to 153,833.32, 212,386.08 and 117,954.40 is: 162,850.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,833.32 : 212,386.08 = 117,954.40 : x
  2. Step 2: Convert to fraction form
    153,833.32/212,386.08 = 117,954.40/x
  3. Step 3: Cross multiply
    153,833.32x = 212,386.08 × 117,954.40
  4. Step 4: Simplify right side
    153,833.32x = 25,051,872,634.75
  5. Step 5: Solve for x
    x = 25,051,872,634.75/153,833.32
  6. Step 6: Final answer
    x = 162,850.76

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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.