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Finding the Fourth Proportional to 357,957.60, 536,934.24 and 91,718.16

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Solution

The fourth proportional to 357,957.60, 536,934.24 and 91,718.16 is: 137,576.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,957.60 : 536,934.24 = 91,718.16 : x
  2. Step 2: Convert to fraction form
    357,957.60/536,934.24 = 91,718.16/x
  3. Step 3: Cross multiply
    357,957.60x = 536,934.24 × 91,718.16
  4. Step 4: Simplify right side
    357,957.60x = 49,246,620,533.80
  5. Step 5: Solve for x
    x = 49,246,620,533.80/357,957.60
  6. Step 6: Final answer
    x = 137,576.69

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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.