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Finding the Fourth Proportional to 220,037.72, 330,053.94 and 70,276.01

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Solution

The fourth proportional to 220,037.72, 330,053.94 and 70,276.01 is: 105,413.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,037.72 : 330,053.94 = 70,276.01 : x
  2. Step 2: Convert to fraction form
    220,037.72/330,053.94 = 70,276.01/x
  3. Step 3: Cross multiply
    220,037.72x = 330,053.94 × 70,276.01
  4. Step 4: Simplify right side
    220,037.72x = 23,194,872,337.71
  5. Step 5: Solve for x
    x = 23,194,872,337.71/220,037.72
  6. Step 6: Final answer
    x = 105,413.17

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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.