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Finding the Fourth Proportional to 145,692.63, 201,085.65 and 91,941.48

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Solution

The fourth proportional to 145,692.63, 201,085.65 and 91,941.48 is: 126,898.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,692.63 : 201,085.65 = 91,941.48 : x
  2. Step 2: Convert to fraction form
    145,692.63/201,085.65 = 91,941.48/x
  3. Step 3: Cross multiply
    145,692.63x = 201,085.65 × 91,941.48
  4. Step 4: Simplify right side
    145,692.63x = 18,488,112,267.76
  5. Step 5: Solve for x
    x = 18,488,112,267.76/145,692.63
  6. Step 6: Final answer
    x = 126,898.06

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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.