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Finding the Fourth Proportional to 110,136.64, 152,051.52 and 72,520.32

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Solution

The fourth proportional to 110,136.64, 152,051.52 and 72,520.32 is: 100,119.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,136.64 : 152,051.52 = 72,520.32 : x
  2. Step 2: Convert to fraction form
    110,136.64/152,051.52 = 72,520.32/x
  3. Step 3: Cross multiply
    110,136.64x = 152,051.52 × 72,520.32
  4. Step 4: Simplify right side
    110,136.64x = 11,026,824,886.89
  5. Step 5: Solve for x
    x = 11,026,824,886.89/110,136.64
  6. Step 6: Final answer
    x = 100,119.50

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