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Finding the Fourth Proportional to 155,358.80, 233,038.20 and 61,816.40

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Solution

The fourth proportional to 155,358.80, 233,038.20 and 61,816.40 is: 92,724.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,358.80 : 233,038.20 = 61,816.40 : x
  2. Step 2: Convert to fraction form
    155,358.80/233,038.20 = 61,816.40/x
  3. Step 3: Cross multiply
    155,358.80x = 233,038.20 × 61,816.40
  4. Step 4: Simplify right side
    155,358.80x = 14,405,582,586.48
  5. Step 5: Solve for x
    x = 14,405,582,586.48/155,358.80
  6. Step 6: Final answer
    x = 92,724.60

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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.