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Finding the Fourth Proportional to 602,522.90, 903,780.42 and 153,239.88

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Solution

The fourth proportional to 602,522.90, 903,780.42 and 153,239.88 is: 229,858.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,522.90 : 903,780.42 = 153,239.88 : x
  2. Step 2: Convert to fraction form
    602,522.90/903,780.42 = 153,239.88/x
  3. Step 3: Cross multiply
    602,522.90x = 903,780.42 × 153,239.88
  4. Step 4: Simplify right side
    602,522.90x = 138,495,203,107.15
  5. Step 5: Solve for x
    x = 138,495,203,107.15/602,522.90
  6. Step 6: Final answer
    x = 229,858.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.