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Finding the Fourth Proportional to 307,070.60, 423,746.64 and 171,097.52

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Solution

The fourth proportional to 307,070.60, 423,746.64 and 171,097.52 is: 236,108.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,070.60 : 423,746.64 = 171,097.52 : x
  2. Step 2: Convert to fraction form
    307,070.60/423,746.64 = 171,097.52/x
  3. Step 3: Cross multiply
    307,070.60x = 423,746.64 × 171,097.52
  4. Step 4: Simplify right side
    307,070.60x = 72,501,997,093.60
  5. Step 5: Solve for x
    x = 72,501,997,093.60/307,070.60
  6. Step 6: Final answer
    x = 236,108.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.