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Finding the Fourth Proportional to 357,353.28, 535,916.24 and 117,411.87

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Solution

The fourth proportional to 357,353.28, 535,916.24 and 117,411.87 is: 176,080.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,353.28 : 535,916.24 = 117,411.87 : x
  2. Step 2: Convert to fraction form
    357,353.28/535,916.24 = 117,411.87/x
  3. Step 3: Cross multiply
    357,353.28x = 535,916.24 × 117,411.87
  4. Step 4: Simplify right side
    357,353.28x = 62,922,928,587.65
  5. Step 5: Solve for x
    x = 62,922,928,587.65/357,353.28
  6. Step 6: Final answer
    x = 176,080.46

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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.