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Finding the Fourth Proportional to 357,818.55, 536,644.74 and 105,031.15

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Solution

The fourth proportional to 357,818.55, 536,644.74 and 105,031.15 is: 157,522.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,818.55 : 536,644.74 = 105,031.15 : x
  2. Step 2: Convert to fraction form
    357,818.55/536,644.74 = 105,031.15/x
  3. Step 3: Cross multiply
    357,818.55x = 536,644.74 × 105,031.15
  4. Step 4: Simplify right side
    357,818.55x = 56,364,413,235.91
  5. Step 5: Solve for x
    x = 56,364,413,235.91/357,818.55
  6. Step 6: Final answer
    x = 157,522.34

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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.