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Finding the Fourth Proportional to 106,818.55, 147,368.26 and 68,567.92

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Solution

The fourth proportional to 106,818.55, 147,368.26 and 68,567.92 is: 94,597.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,818.55 : 147,368.26 = 68,567.92 : x
  2. Step 2: Convert to fraction form
    106,818.55/147,368.26 = 68,567.92/x
  3. Step 3: Cross multiply
    106,818.55x = 147,368.26 × 68,567.92
  4. Step 4: Simplify right side
    106,818.55x = 10,104,734,779.51
  5. Step 5: Solve for x
    x = 10,104,734,779.51/106,818.55
  6. Step 6: Final answer
    x = 94,597.19

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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.