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Finding the Fourth Proportional to 525,816.32, 788,857.52 and 146,737.01

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Solution

The fourth proportional to 525,816.32, 788,857.52 and 146,737.01 is: 220,142.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,816.32 : 788,857.52 = 146,737.01 : x
  2. Step 2: Convert to fraction form
    525,816.32/788,857.52 = 146,737.01/x
  3. Step 3: Cross multiply
    525,816.32x = 788,857.52 × 146,737.01
  4. Step 4: Simplify right side
    525,816.32x = 115,754,593,800.82
  5. Step 5: Solve for x
    x = 115,754,593,800.82/525,816.32
  6. Step 6: Final answer
    x = 220,142.64

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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.