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Finding the Fourth Proportional to 525,871.80, 788,807.70 and 151,932.60

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Solution

The fourth proportional to 525,871.80, 788,807.70 and 151,932.60 is: 227,898.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,871.80 : 788,807.70 = 151,932.60 : x
  2. Step 2: Convert to fraction form
    525,871.80/788,807.70 = 151,932.60/x
  3. Step 3: Cross multiply
    525,871.80x = 788,807.70 × 151,932.60
  4. Step 4: Simplify right side
    525,871.80x = 119,845,604,761.02
  5. Step 5: Solve for x
    x = 119,845,604,761.02/525,871.80
  6. Step 6: Final answer
    x = 227,898.90

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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.