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Finding the Fourth Proportional to 104,699.26, 144,420.16 and 91,302.67

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Solution

The fourth proportional to 104,699.26, 144,420.16 and 91,302.67 is: 125,941.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,699.26 : 144,420.16 = 91,302.67 : x
  2. Step 2: Convert to fraction form
    104,699.26/144,420.16 = 91,302.67/x
  3. Step 3: Cross multiply
    104,699.26x = 144,420.16 × 91,302.67
  4. Step 4: Simplify right side
    104,699.26x = 13,185,946,209.83
  5. Step 5: Solve for x
    x = 13,185,946,209.83/104,699.26
  6. Step 6: Final answer
    x = 125,941.16

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1.5x scale

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.