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Finding the Fourth Proportional to 575,354.40, 863,031.60 and 154,672.80

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Solution

The fourth proportional to 575,354.40, 863,031.60 and 154,672.80 is: 232,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,354.40 : 863,031.60 = 154,672.80 : x
  2. Step 2: Convert to fraction form
    575,354.40/863,031.60 = 154,672.80/x
  3. Step 3: Cross multiply
    575,354.40x = 863,031.60 × 154,672.80
  4. Step 4: Simplify right side
    575,354.40x = 133,487,514,060.48
  5. Step 5: Solve for x
    x = 133,487,514,060.48/575,354.40
  6. Step 6: Final answer
    x = 232,009.20

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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.