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Finding the Fourth Proportional to 292,635.92, 403,870.35 and 165,319.71

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Solution

The fourth proportional to 292,635.92, 403,870.35 and 165,319.71 is: 228,159.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,635.92 : 403,870.35 = 165,319.71 : x
  2. Step 2: Convert to fraction form
    292,635.92/403,870.35 = 165,319.71/x
  3. Step 3: Cross multiply
    292,635.92x = 403,870.35 × 165,319.71
  4. Step 4: Simplify right side
    292,635.92x = 66,767,729,139.60
  5. Step 5: Solve for x
    x = 66,767,729,139.60/292,635.92
  6. Step 6: Final answer
    x = 228,159.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.