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Finding the Fourth Proportional to 134,641.76, 185,804.60 and 74,212.52

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Solution

The fourth proportional to 134,641.76, 185,804.60 and 74,212.52 is: 102,412.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,641.76 : 185,804.60 = 74,212.52 : x
  2. Step 2: Convert to fraction form
    134,641.76/185,804.60 = 74,212.52/x
  3. Step 3: Cross multiply
    134,641.76x = 185,804.60 × 74,212.52
  4. Step 4: Simplify right side
    134,641.76x = 13,789,026,293.51
  5. Step 5: Solve for x
    x = 13,789,026,293.51/134,641.76
  6. Step 6: Final answer
    x = 102,412.70

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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.