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Finding the Fourth Proportional to 352,027.60, 528,041.40 and 127,387.60

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Solution

The fourth proportional to 352,027.60, 528,041.40 and 127,387.60 is: 191,081.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,027.60 : 528,041.40 = 127,387.60 : x
  2. Step 2: Convert to fraction form
    352,027.60/528,041.40 = 127,387.60/x
  3. Step 3: Cross multiply
    352,027.60x = 528,041.40 × 127,387.60
  4. Step 4: Simplify right side
    352,027.60x = 67,265,926,646.64
  5. Step 5: Solve for x
    x = 67,265,926,646.64/352,027.60
  6. Step 6: Final answer
    x = 191,081.40

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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.