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Finding the Fourth Proportional to 388,552.79, 582,861.98 and 108,070.04

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Solution

The fourth proportional to 388,552.79, 582,861.98 and 108,070.04 is: 162,114.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,552.79 : 582,861.98 = 108,070.04 : x
  2. Step 2: Convert to fraction form
    388,552.79/582,861.98 = 108,070.04/x
  3. Step 3: Cross multiply
    388,552.79x = 582,861.98 × 108,070.04
  4. Step 4: Simplify right side
    388,552.79x = 62,989,914,038.42
  5. Step 5: Solve for x
    x = 62,989,914,038.42/388,552.79
  6. Step 6: Final answer
    x = 162,114.17

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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.