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Finding the Fourth Proportional to 261,777.47, 392,569.20 and 93,253.01

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Solution

The fourth proportional to 261,777.47, 392,569.20 and 93,253.01 is: 139,844.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,777.47 : 392,569.20 = 93,253.01 : x
  2. Step 2: Convert to fraction form
    261,777.47/392,569.20 = 93,253.01/x
  3. Step 3: Cross multiply
    261,777.47x = 392,569.20 × 93,253.01
  4. Step 4: Simplify right side
    261,777.47x = 36,608,257,570.45
  5. Step 5: Solve for x
    x = 36,608,257,570.45/261,777.47
  6. Step 6: Final answer
    x = 139,844.95

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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.