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Finding the Fourth Proportional to 565,521.47, 848,274.80 and 139,060.98

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Solution

The fourth proportional to 565,521.47, 848,274.80 and 139,060.98 is: 208,589.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,521.47 : 848,274.80 = 139,060.98 : x
  2. Step 2: Convert to fraction form
    565,521.47/848,274.80 = 139,060.98/x
  3. Step 3: Cross multiply
    565,521.47x = 848,274.80 × 139,060.98
  4. Step 4: Simplify right side
    565,521.47x = 117,961,923,089.55
  5. Step 5: Solve for x
    x = 117,961,923,089.55/565,521.47
  6. Step 6: Final answer
    x = 208,589.65

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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.