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Finding the Fourth Proportional to 292,768.08, 438,813.18 and 134,664.72

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Solution

The fourth proportional to 292,768.08, 438,813.18 and 134,664.72 is: 201,841.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,768.08 : 438,813.18 = 134,664.72 : x
  2. Step 2: Convert to fraction form
    292,768.08/438,813.18 = 134,664.72/x
  3. Step 3: Cross multiply
    292,768.08x = 438,813.18 × 134,664.72
  4. Step 4: Simplify right side
    292,768.08x = 59,092,654,017.01
  5. Step 5: Solve for x
    x = 59,092,654,017.01/292,768.08
  6. Step 6: Final answer
    x = 201,841.18

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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.