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Finding the Fourth Proportional to 292,571.04, 438,856.52 and 102,986.76

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Solution

The fourth proportional to 292,571.04, 438,856.52 and 102,986.76 is: 154,480.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,571.04 : 438,856.52 = 102,986.76 : x
  2. Step 2: Convert to fraction form
    292,571.04/438,856.52 = 102,986.76/x
  3. Step 3: Cross multiply
    292,571.04x = 438,856.52 × 102,986.76
  4. Step 4: Simplify right side
    292,571.04x = 45,196,411,099.68
  5. Step 5: Solve for x
    x = 45,196,411,099.68/292,571.04
  6. Step 6: Final answer
    x = 154,480.13

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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.