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Finding the Fourth Proportional to 357,060.17, 492,880.17 and 242,390.07

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Solution

The fourth proportional to 357,060.17, 492,880.17 and 242,390.07 is: 334,591.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,060.17 : 492,880.17 = 242,390.07 : x
  2. Step 2: Convert to fraction form
    357,060.17/492,880.17 = 242,390.07/x
  3. Step 3: Cross multiply
    357,060.17x = 492,880.17 × 242,390.07
  4. Step 4: Simplify right side
    357,060.17x = 119,469,256,443.51
  5. Step 5: Solve for x
    x = 119,469,256,443.51/357,060.17
  6. Step 6: Final answer
    x = 334,591.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.