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Finding the Fourth Proportional to 438,771.95, 658,157.93 and 106,347.95

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Solution

The fourth proportional to 438,771.95, 658,157.93 and 106,347.95 is: 159,521.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,771.95 : 658,157.93 = 106,347.95 : x
  2. Step 2: Convert to fraction form
    438,771.95/658,157.93 = 106,347.95/x
  3. Step 3: Cross multiply
    438,771.95x = 658,157.93 × 106,347.95
  4. Step 4: Simplify right side
    438,771.95x = 69,993,746,631.74
  5. Step 5: Solve for x
    x = 69,993,746,631.74/438,771.95
  6. Step 6: Final answer
    x = 159,521.93

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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.