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Finding the Fourth Proportional to 352,106.66, 528,027.36 and 127,411.52

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Solution

The fourth proportional to 352,106.66, 528,027.36 and 127,411.52 is: 191,069.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,106.66 : 528,027.36 = 127,411.52 : x
  2. Step 2: Convert to fraction form
    352,106.66/528,027.36 = 127,411.52/x
  3. Step 3: Cross multiply
    352,106.66x = 528,027.36 × 127,411.52
  4. Step 4: Simplify right side
    352,106.66x = 67,276,765,421.26
  5. Step 5: Solve for x
    x = 67,276,765,421.26/352,106.66
  6. Step 6: Final answer
    x = 191,069.28

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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.