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Finding the Fourth Proportional to 357,187.66, 535,061.72 and 237,312.11

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Solution

The fourth proportional to 357,187.66, 535,061.72 and 237,312.11 is: 355,489.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,187.66 : 535,061.72 = 237,312.11 : x
  2. Step 2: Convert to fraction form
    357,187.66/535,061.72 = 237,312.11/x
  3. Step 3: Cross multiply
    357,187.66x = 535,061.72 × 237,312.11
  4. Step 4: Simplify right side
    357,187.66x = 126,976,627,684.36
  5. Step 5: Solve for x
    x = 126,976,627,684.36/357,187.66
  6. Step 6: Final answer
    x = 355,489.96

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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.