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Finding the Fourth Proportional to 156,315.78, 234,787.54 and 93,259.11

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Solution

The fourth proportional to 156,315.78, 234,787.54 and 93,259.11 is: 140,075.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,315.78 : 234,787.54 = 93,259.11 : x
  2. Step 2: Convert to fraction form
    156,315.78/234,787.54 = 93,259.11/x
  3. Step 3: Cross multiply
    156,315.78x = 234,787.54 × 93,259.11
  4. Step 4: Simplify right side
    156,315.78x = 21,896,076,255.61
  5. Step 5: Solve for x
    x = 21,896,076,255.61/156,315.78
  6. Step 6: Final answer
    x = 140,075.91

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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.