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Finding the Fourth Proportional to 147,429.60, 220,816.35 and 127,746.60

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Solution

The fourth proportional to 147,429.60, 220,816.35 and 127,746.60 is: 191,335.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,429.60 : 220,816.35 = 127,746.60 : x
  2. Step 2: Convert to fraction form
    147,429.60/220,816.35 = 127,746.60/x
  3. Step 3: Cross multiply
    147,429.60x = 220,816.35 × 127,746.60
  4. Step 4: Simplify right side
    147,429.60x = 28,208,537,936.91
  5. Step 5: Solve for x
    x = 28,208,537,936.91/147,429.60
  6. Step 6: Final answer
    x = 191,335.65

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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.