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Finding the Fourth Proportional to 357,995.16, 537,021.90 and 118,154.16

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Solution

The fourth proportional to 357,995.16, 537,021.90 and 118,154.16 is: 177,240.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,995.16 : 537,021.90 = 118,154.16 : x
  2. Step 2: Convert to fraction form
    357,995.16/537,021.90 = 118,154.16/x
  3. Step 3: Cross multiply
    357,995.16x = 537,021.90 × 118,154.16
  4. Step 4: Simplify right side
    357,995.16x = 63,451,371,496.10
  5. Step 5: Solve for x
    x = 63,451,371,496.10/357,995.16
  6. Step 6: Final answer
    x = 177,240.86

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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.