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Finding the Fourth Proportional to 232,518.52, 320,854.63 and 135,730.77

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Solution

The fourth proportional to 232,518.52, 320,854.63 and 135,730.77 is: 187,296.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,518.52 : 320,854.63 = 135,730.77 : x
  2. Step 2: Convert to fraction form
    232,518.52/320,854.63 = 135,730.77/x
  3. Step 3: Cross multiply
    232,518.52x = 320,854.63 × 135,730.77
  4. Step 4: Simplify right side
    232,518.52x = 43,549,845,309.31
  5. Step 5: Solve for x
    x = 43,549,845,309.31/232,518.52
  6. Step 6: Final answer
    x = 187,296.25

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1.5x scale

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.