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Finding the Fourth Proportional to 292,438.36, 438,673.13 and 92,774.71

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Solution

The fourth proportional to 292,438.36, 438,673.13 and 92,774.71 is: 139,167.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,438.36 : 438,673.13 = 92,774.71 : x
  2. Step 2: Convert to fraction form
    292,438.36/438,673.13 = 92,774.71/x
  3. Step 3: Cross multiply
    292,438.36x = 438,673.13 × 92,774.71
  4. Step 4: Simplify right side
    292,438.36x = 40,697,772,420.54
  5. Step 5: Solve for x
    x = 40,697,772,420.54/292,438.36
  6. Step 6: Final answer
    x = 139,167.01

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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.