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Finding the Fourth Proportional to 261,751.57, 392,611.71 and 93,262.96

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Solution

The fourth proportional to 261,751.57, 392,611.71 and 93,262.96 is: 139,888.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,751.57 : 392,611.71 = 93,262.96 : x
  2. Step 2: Convert to fraction form
    261,751.57/392,611.71 = 93,262.96/x
  3. Step 3: Cross multiply
    261,751.57x = 392,611.71 × 93,262.96
  4. Step 4: Simplify right side
    261,751.57x = 36,616,130,521.16
  5. Step 5: Solve for x
    x = 36,616,130,521.16/261,751.57
  6. Step 6: Final answer
    x = 139,888.87

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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.