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Finding the Fourth Proportional to 292,424.10, 438,570.54 and 134,500.86

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Solution

The fourth proportional to 292,424.10, 438,570.54 and 134,500.86 is: 201,721.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,424.10 : 438,570.54 = 134,500.86 : x
  2. Step 2: Convert to fraction form
    292,424.10/438,570.54 = 134,500.86/x
  3. Step 3: Cross multiply
    292,424.10x = 438,570.54 × 134,500.86
  4. Step 4: Simplify right side
    292,424.10x = 58,988,114,800.66
  5. Step 5: Solve for x
    x = 58,988,114,800.66/292,424.10
  6. Step 6: Final answer
    x = 201,721.11

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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.