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Finding the Fourth Proportional to 144,601.44, 216,991.95 and 69,729.30

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Solution

The fourth proportional to 144,601.44, 216,991.95 and 69,729.30 is: 104,637.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,601.44 : 216,991.95 = 69,729.30 : x
  2. Step 2: Convert to fraction form
    144,601.44/216,991.95 = 69,729.30/x
  3. Step 3: Cross multiply
    144,601.44x = 216,991.95 × 69,729.30
  4. Step 4: Simplify right side
    144,601.44x = 15,130,696,779.14
  5. Step 5: Solve for x
    x = 15,130,696,779.14/144,601.44
  6. Step 6: Final answer
    x = 104,637.25

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1.5x scale

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.