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Finding the Fourth Proportional to 352,477.31, 528,551.94 and 127,828.67

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Solution

The fourth proportional to 352,477.31, 528,551.94 and 127,828.67 is: 191,683.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,477.31 : 528,551.94 = 127,828.67 : x
  2. Step 2: Convert to fraction form
    352,477.31/528,551.94 = 127,828.67/x
  3. Step 3: Cross multiply
    352,477.31x = 528,551.94 × 127,828.67
  4. Step 4: Simplify right side
    352,477.31x = 67,564,091,516.12
  5. Step 5: Solve for x
    x = 67,564,091,516.12/352,477.31
  6. Step 6: Final answer
    x = 191,683.52

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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.